I wonder if anyone else has noticed this oddity.....
I use my i9000 with three different wireless routers.
(1) Linksys WRT54G running latest DD-WRT
(2) O2 Thomson TG585-V7 (Wireless Box II)
(3) Belkin F5D7634-4A-H
I've done this testing multiple nights from midnight to 6am. No other apps running. The I9000 is fully charged by midnight.
With (Router 2) I will lose about 1% per hour overnight.
With (Router 3) I will lose about 3% per hour overnight.
But with (Router 1), I will lose (10 to 15%) per hour overnight.
All of the routers are running the same channel and default antenna power. I can't see any difference between the routers, power wise.
I am beginning to wonder if this disparity is responsible for some users having unpredictable battery drain with their Galaxys.
Has anyone come across an app that will let me log all of the wireless connection activity?
I believe that, as for 3g connection, a stronger and cleaner wifi signal reduces battery drain. If it is so it looks to me quite normal that a good quality router (cisco/linksys) gives better results than a cheap device..
I believe you may have mis-read the results. The Linksys gives the worst battery drain. Anywhere from 60 to 80% in six hours.
The O2 Thomson gives the best overall. That or I've mis-read your answer....
finally i found someone with (almost)the same problem as me!!
except i am experiencing the direct opposite - when im using the stock wrt54g my battery only drains 1-2% per hour, but when im using my main router, the dir 615, it can drain up to 10% per hour.
i did almost everything i could to reduce the battery drain with my dir 615 router but it just doesn't work! i removed the security password for the router and even changed the speed mode to wireless B + G only but still it still drains crazily! wtf?
i've searched high and low for this problem but no one else ever posted about this problem. i've even posted this issue on another forum but didn't get any solution.
the problem is my phone doesn't go to sleep ("time spent without sleeping" in battery history is always very high - like a few hours off from "time spent with screen on") whenever i am connected to my home router. BUT when i am using some other connection like one at public or at work the "time spent without sleeping" in battery history is very close to "time spent with screen on". so clearly something is preventing my phone from sleeping whenever i am at home. i just can't figure out what it is.
i posted this issue on hardwarezone as well. link is below
hxxp://forums.hardwarezone.com.sg/showthread.php?p=50910987
if anyone could help id be greatly appreciate it cuz i don't want to change my damn router just to fix this thing.
HELP! AND SORRY IF I AM HIJACKING!
My bad, I read your post too fast thinking the first drain % was about first router and so on. Still I belive connection "quality" (signal strenght & noise absence) does affect battery life.
Btw, assuming that connection configuration is the same (b/g/n, wpa, wpa2, wep or whatever), you should check somehow (even with a laptop, I think) what kind of differences the 3 router wifi signal have (in terms of S/N).
Interesting, I checked and my drain while connected to the router at home is appalling as well - I thought it was just the new firmware getting something wrong. Luckily I just got a new router so I'll try that out and see if there's any improvement.
Barkotron said:
Interesting, I checked and my drain while connected to the router at home is appalling as well - I thought it was just the new firmware getting something wrong. Luckily I just got a new router so I'll try that out and see if there's any improvement.
Click to expand...
Click to collapse
any news on the results? what are the models of the new and old routers?
Sent from my GT-I9000 using XDA App
salivaman said:
finally i found someone with (almost)the same problem as me!!
except i am experiencing the direct opposite - when im using the stock wrt54g my battery only drains 1-2% per hour, but when im using my main router, the dir 615, it can drain up to 10% per hour.
i did almost everything i could to reduce the battery drain with my dir 615 router but it just doesn't work! i removed the security password for the router and even changed the speed mode to wireless B + G only but still it still drains crazily! wtf?
Click to expand...
Click to collapse
Just a thought - the SSID isn't hidden on one of the routers, is it? I've known that to cause strange issues in other wifi situations...
Many routers, specially old ones, don't support the "power save" option that some laptops feature, in this case, probably SGS has problems when entering save mode on the routers which don't support the power saving feautre of the device.
Maybe setting your phones wifi to the never sleep policy might affect in your performance, try it out guys, I hope it helps.
hiroshige said:
Just a thought - the SSID isn't hidden on one of the routers, is it? I've known that to cause strange issues in other wifi situations...
Click to expand...
Click to collapse
SSID is not hidden on both routers.
gtluis said:
Many routers, specially old ones, don't support the "power save" option that some laptops feature, in this case, probably SGS has problems when entering save mode on the routers which don't support the power saving feautre of the device.
Maybe setting your phones wifi to the never sleep policy might affect in your performance, try it out guys, I hope it helps.
Click to expand...
Click to collapse
my results have been tested using the "never sleep" policy. i always have that turned on so that 3g won't be switched over when the screen is off.
Could be the Beacon Interval of the routers.
http://wireless-nets.blogspot.com/2008/07/beacon-interval-impacts-on-battery-life.html
http://www.technologyreview.com/printer_friendly_article.aspx?id=25651
I believe you may be onto something here. I researched Beacon Interval and DD-WRT (Router 1) and found multiple instances of people having connection, latency and speed issues with DD-WRT that were fixed by changing the Beacon Interval on the Access Point.
I will check out the Linksys router later today to see what the default Beacon Interval is set at and report back.
tc80tc80 said:
I wonder if anyone else has noticed this oddity.....
I use my i9000 with three different wireless routers.
(1) Linksys WRT54G running latest DD-WRT
(2) O2 Thomson TG585-V7 (Wireless Box II)
(3) Belkin F5D7634-4A-H
I've done this testing multiple nights from midnight to 6am. No other apps running. The I9000 is fully charged by midnight.
With (Router 2) I will lose about 1% per hour overnight.
With (Router 3) I will lose about 3% per hour overnight.
But with (Router 1), I will lose (10 to 15%) per hour overnight.
All of the routers are running the same channel and default antenna power. I can't see any difference between the routers, power wise.
I am beginning to wonder if this disparity is responsible for some users having unpredictable battery drain with their Galaxys.
Has anyone come across an app that will let me log all of the wireless connection activity?
Click to expand...
Click to collapse
Hi!
This is some interesting facts you have encountered, regarding an app to log wifi activities I would reccomend Shark together with Shark reader, not the native mode version of Shark as it doesn't work on the Galaxy. It's not an easy to use program but it should be able to tell you what goes on in the network of your device.
You are very welcome to present your findings in my YADB - Yet Another Battery Drain thread, hope it's ok that I post a link to this thread from mine.
If you or anyone else want to visit YABD, there is a link in my signature.
Although my phone is a Desire HD I need to share my experience with you guys.
I have the AirTies RT-204 router and since I started using my phone the battery life when wifi was always on had been horendous (about 5-10% per hour on idle).
However, about 5 days ago my router was restarted and my battery has been excellent from that point on (about 1% even less per hour on idle).
Last night the router has been reset again and the big battery drain has come back again.
What this tells me is that the model of a router is not the culprit for the big battery drain. It has something to do with the IP changing when restarting it. Now, I am not an expert on routers etc but I believe this seems as a logical assumption.
Could some of you having this problem try restarting your router and see if it helps? Remember that maybe it will not have an impact the first time you restart and you will have to do this multiple times.
If u have anyhting more on this please post your thoughts.
Thanks
Related
I have looked at every thread and forum possible for the past 2 months. My wifes nexus and my own connects to our home wifi for a few minutes then disconnects itself (weather the screen times out or not) and will not reconnect at all. I have tried the wifi fix apps on the market, changed the settings on my router numerous times, factory rest my router and phone, changed roms, and even routers but nothing seems to work. My wife's nexus is stock and not rooted so I have been using hers as a reference thinking it was maybe a rom I was using but she is having the same problem. Any ideas would be greatly appreciated.
sigep235
I had that problem but as soon as I got to 2.2.1 and/or used a newer Radio version, the problem disappeared...
Although, N1s are still very picky on routers...try with another router and check if it keeps the connection alive.
Also check your router settings to see if they're optimal (try having no password set and see if it keeps the connection...if it does then it might be a problem with the N1 not crypting information well or so)
You could also try updating the router's firmware.
Make sure your wifi policy is set to "Never" (go in wifi settings the press Menu and click on settings)
Last thing you could try is manually set an IP address + gateway + netmask in the wifi settings as well as setting your N1's mac address to that same IP address in the router...
If nothing works then, I'm completely out of solutions
I just got on to look at some of the settings with my router when I noticed that some times when my phone says I am connected to the wifi there is no IP address assigned to the phone. Under connected devices it says "android device" but with no ip address associated with it...
I still have the problem
I still have the problem. I have pretty much given up on it. I have heard that if you increase the minimum CPU speed a little, it will help. I'm not willing to do that as it will undoubtedly waste more battery.
I have changed the wifi sleep policy back to "when screen turns off", because having it on "never" would make the phone think it's connected..when it isn't..leading to hours of no email notifications and such. But I can't imagine how frustrating this must be for people who don't have a data plan or some other similar situation.
I'm thinking about getting a Wireless N router (I have a G right now) and seeing if that helps. But even if I was to get one, I don't have much money to spare so I'd probably get the cheapest N routers, around 30-50 dollars..and I don't know if those are any good...or if there really isn't any difference between the high priced and low priced ones.
I said this in another thread, but I'll say it here.
I tried all of the things everyone could suggest and none of them worked. When I heard Broadcom updated the driver and CyanogenMod put it into his nightlies, I bit the bullet, unlocked my bootloader and installed CM6 and it changed NOTHING. So I went out and bought a new router: Cisco E3000. It works great. So I guess it was a bad combination of phone and router. I had to spend hundreds of dollars. Really ****ing pissed me off. But I wasn't going to buy a cheaper router without dual channel wireless N.
ksc6000 said:
I still have the problem. I have pretty much given up on it. I have heard that if you increase the minimum CPU speed a little, it will help. I'm not willing to do that as it will undoubtedly waste more battery.
I have changed the wifi sleep policy back to "when screen turns off", because having it on "never" would make the phone think it's connected..when it isn't..leading to hours of no email notifications and such. But I can't imagine how frustrating this must be for people who don't have a data plan or some other similar situation.
I'm thinking about getting a Wireless N router (I have a G right now) and seeing if that helps. But even if I was to get one, I don't have much money to spare so I'd probably get the cheapest N routers, around 30-50 dollars..and I don't know if those are any good...or if there really isn't any difference between the high priced and low priced ones.
Click to expand...
Click to collapse
Nexus has N connectivity but only on one band (2.4Ghz) and I don't think the technology matter (heck, I'm still on 802.11b ) it's really more of a phone/router combination problem...
I did actually test on my VERY CHEAP spare 802.11g router (DLink --> do not buy their products) and the connection did NOT stay...that was back when I was on stock FRG83 though...I should try again on Cyanogen but I'm wayyy too lazy ^^
btw, I really don't get why people always unlock when they wanna flash a rom....heck, keep your warranty!! there is an easy way of doing it without unlocking...meh
PS: I have a 50MB data plan (technically, I didn't buy a data plan, it came free) so I AM a heavy wifi user and it was such a pissoff to find out that my new Nexus One couldn't connect to Wifi and keep the connection alive...now I'm damn happy that it works after all that fiddling ^^
@sigep: try to assign a manual ip to your N1's mac addres...or update firmware, it definitely looks like a router problem...
The root without unlocking method wasn't too tested when I unlocked my bootloader.
I have made two swaps with no problems since.
pwig said:
The root without unlocking method wasn't too tested when I unlocked my bootloader.
I have made two swaps with no problems since.
Click to expand...
Click to collapse
Oh kay sorry then
Although all the new wikis and todos should emphasize on the locked bootloader methods to avoid voiding warranties...although I admit fastboot is always noobproof but I digress ^^
I've been testing several routers from different brands, and the only one that seems to work fine with mi Nexus One is the Linksys/Cisco WAG160N (802.11n, but 2.4 GHz only). However this one has other issues of its own, like not being able to connect to mapped ports after two days up and running (not even from the LAN). The N1 works fine, thought, it doesn't disconnect overnight.
I've also tried an SMC (SMC SMC7904WBRA-N, I think). This one is really bad, the router freezes after only two days of use, the lights freeze and it stops working altogether. I returned it after a week.
I'm currently using a Sitecom (300N WL-348). With this one the N1 WiFi is dropped over night, and the connection to this AP is disabled. I'm still testing if moving to a less crowded channel could fix that. I hope it does, since this router seems to have a more stable firmware that the Linksys/Cisco, same WiFi coverage (which is quite good), and even better WiFi performance. Not all is good, though, DSL performance is worse.
In the past I used Netgear routers. The firmware was stable as rock, but the hardware not so much and after a year of use they are very prone to failing. No idea if newer models are any better in this regard, they are impossible to find, so I don't think this has improved.
Since I have DSL at home, I'm looking at routers with DSL modem built in, so I don't have to have two devices (DSL modem and wireless router).
From my observarions - Nexus will disconnect from WiFi when the IP it has is lost and the network doesn't supply IP on time. After 1 or 2 IP assignment timeouts, it will skip the network and refuse to connect.
Every router I've connected to that supplied IP on time, even when revoked every X min, didn't cause disconnects.
Of course, WiFi on sleep set to "Never".
Success! Last night I updated the firmware of the Sitecom router, and changed the WiFi channels (it's set to use wide channel, so it uses two channels). This morning the N1 had still a solid WiFi connection and over night it updated all services just fine (weather, Facebook, email).
I've been using the Sitecom router since my last post with no issues. Then last friday arrived a small update that broke WiFi. On Saturday arrived the bigger update to Android 2.2.1 but the problem with WiFi remains. Before 2.2.1 Wifi has been working fine every day at home and work, now with 2.2.1 it's broken at home and work.
Are we moving forward? If Gingerbread doesn't fix this problem I'll have to do something about it: try cooked ROMs or even getting another phone . Currently my N1 keeps disabling my access points all the time.
Hi!
A few weeks ago I flashed CM9, since then I experience an enormous battery drain when I'm connected to the wifi of my university ("eduroam").
The "Android OS" process then consumes a lot more ressources than usual. At my home wifi everything is normal.
And when I turn off wifi at the college and use normal mobile network, everything is also fine.
Pictures:
s14.directupload.net/images/120513/erjgvknk.png
s14.directupload.net/images/120513/mau8hlfo.png
What I tried to fix it:
-flash different modems
-turn off location via wifi
-use different "EAP-Method" (TTLS and PEAP are supported by the college network)
I would be very happy if someone could help me!
Thanks in advance.
modems are not related to wifi... consider instead a different kernel..
I'm having the same problem, but on an i9100 device. Have observed this problem using different roms/kernels, all with similar result.
It seems the problem is not related to roms/kernels. When I'm using my home wi-fi network, their is no battery drains at all. The drain only happens when I'm connected to "eduroam" access point.
Monitored using BetterBatteryState, find long wakelock time for "wlan-rx-wake".
Now I just disable wifi when I'm not using it in an eduroam area.
Problem confirmed.
For me it's even worse. As soon as I add eduroam to my list of wifi access points, the drain is at 60-70 mA even on my home network.
Could this be related to the encryption or access control of eduroam? "Normal" wifi networks use wpa or whatever but not this weird PEAP or EAP, etc.
I have the same problem. Some networks drain the battery really fast, while battery drain at other Wi-Fi networks is normal...
I'm having a strange issue with my Exhibit . I'm running CyanogenMod 11 20140714-UNOFFICIAL although I think I saw this earlier too. When I'm home on my WiFi, battery use it great. Under 2%/hour. When I'm at work on the WiFiit is pretty bad, around 6-7% per hour. If I turn off WiFi, it gets much better (maybe 3% per hour). Same thing if I forget the WiFi network at work. Sometimes in my battery use graph I can see it get flat for and hour and then get bad again -- I think this is losing the WiFi connection for a bit and then reconnecting.
Work recently moved and the results didn't change enough though my data service strength changed a lot. So I'm pretty sure it has to do with the WiFi network. Other people at work don't notice a drain when using WiFi, so I'm guessing it is a combination of the work WiFi and the phone.
The work WiFi is running tomato 1.27, which I administer. I sniffed the WiFi traffic with my laptop and saw a lot of ARP requests for 'who has address' for address not on the WiFibut on our unsecured network. So I separated that with a VLAN and that helped a bit but not a ton, and the ARP requests are much lower (maybe a ~1 / minute). Signal strength is as good or better at work than at home and at home there is way more congestion of neighbor's WiFi.
I know it isn't my phone usage as I would reboot my phone and not touch it for 3 hours and look at the battery drain at both work and at home and see these differences.
Any ideas on what makes the WiFi at work with a tomato router (vs some netgear wifi router) worse on battery than my home network. Work has maybe 7 clients connected at a time, vs probably just the phone at home. Any ideas on how to troubleshoot / debug. Packet sniffing on the WiFi didn't show anything that stood out.
Thanks!
exhibit679 said:
I'm having a strange issue with my Exhibit . I'm running CyanogenMod 11 20140714-UNOFFICIAL although I think I saw this earlier too. When I'm home on my WiFi, battery use it great. Under 2%/hour. When I'm at work on the WiFiit is pretty bad, around 6-7% per hour. If I turn off WiFi, it gets much better (maybe 3% per hour). Same thing if I forget the WiFi network at work. Sometimes in my battery use graph I can see it get flat for and hour and then get bad again -- I think this is losing the WiFi connection for a bit and then reconnecting.
Work recently moved and the results didn't change enough though my data service strength changed a lot. So I'm pretty sure it has to do with the WiFi network. Other people at work don't notice a drain when using WiFi, so I'm guessing it is a combination of the work WiFi and the phone.
The work WiFi is running tomato 1.27, which I administer. I sniffed the WiFi traffic with my laptop and saw a lot of ARP requests for 'who has address' for address not on the WiFibut on our unsecured network. So I separated that with a VLAN and that helped a bit but not a ton, and the ARP requests are much lower (maybe a ~1 / minute). Signal strength is as good or better at work than at home and at home there is way more congestion of neighbor's WiFi.
I know it isn't my phone usage as I would reboot my phone and not touch it for 3 hours and look at the battery drain at both work and at home and see these differences.
Any ideas on what makes the WiFi at work with a tomato router (vs some netgear wifi router) worse on battery than my home network. Work has maybe 7 clients connected at a time, vs probably just the phone at home. Any ideas on how to troubleshoot / debug. Packet sniffing on the WiFi didn't show anything that stood out.
Thanks!
Click to expand...
Click to collapse
try adjusting some of the settings in the wireless advance settings also make sure your wifi is using the least crowed possible channel and 1,6,and 11 can overlap without interference. easy way to find the best channels is to use an app on a laptop or smartphone with wifi.
Android Wifi Analyzer Free in app store
windows insidder 3 free
Linux LinSSID free
*NOTE too much interfernce may cause network delays which in turn force rechecking connection due to lost packets. also it after trying the above the second thing it could be is possible routers wifi is slowly going out. I've had a linksys router do that. new ping was awesome for e.g playing league of legends 81 when wifi notice her wifi connection kept droping. rebooted router and it worked fine for a a while then did it again and slowly became more frequent ping also increased to 106. replaced router with a new one and ping dropped to 73 and 0 wifi drops or slow downs. hope this helps
I'm pretty sure it isn't interference. At home there are 15 strong WiFi stations across all channels. At work, there are only 2 other WiFi stations and mine is at a channel far from them, so the X-talk from WiFi is way better at work. Also when work moved, I saw no change (although WiFi wasn't crowded at only location either) so I think it has to do with the WiFi network and not the environment.
did you test to make sure wifi isnt dropping packets either as well as check routers wifi intervals
did you test to make sure wifi isnt dropping packets either as well as check routers wifi intervals
Click to expand...
Click to collapse
How would you test if wifi is dropping packets? Just a ping on my phone? I can ping wireless consistently from my desktop, but that is over ethernet.
What do you mean by "wifi intervals"? Is that a setting I should see on my tomato firmware? "Beacon Interval" is set to 100, but I don't claim to understand that. "DTIM Interval" is set to 1.
Thanks,
exhibit679 said:
How would you test if wifi is dropping packets? Just a ping on my phone? I can ping wireless consistently from my desktop, but that is over ethernet.
What do you mean by "wifi intervals"? Is that a setting I should see on my tomato firmware? "Beacon Interval" is set to 100, but I don't claim to understand that. "DTIM Interval" is set to 1.
Thanks,
Click to expand...
Click to collapse
yes that is correct for wifi intervals in the tomato firmware. look at This for better info for what each setting is for. the 3 main ones i would be adjusting as needed is Beacon Interval , Fragmentation Threshold and Interference Mitigation.To test pack loss anything thats on wifi and can ping router. So yeah your phone will work. just make sure you ping the routers ip address e.g for linksys 192.168.1.1
I haven't changed any of the wireless settings yet, but I do have more data. My phone sometimes is on the wifi and has normal (low) battery usage. Today from 9:30 - 12:30 it was great, but after 12:30 there was a discontinuity in the battery vs time graph as the slope decreased by over a factor of 3. Not sure what changed -- I don't see different devices on the wireless or higher wireless utilization. I'm thinking something in the wifi trips a setting or something on the wifi isn't completing on the phone and is draining the battery.
I mainly work at home, so pretty much on wifi all of the day except for the odd hour or so to do school runs. I noticed that with WIFI on, i'm getting terrible battery life - less than 24hrs. This is with most things disabled (location history, google now, etc) but wifi and mobile data on all the time and GPS enabled. Of course mobile data doesn't kick in until i leave my wifi zone. Unfortunately even with location services off, Samsung doesn't have a option to disable the always scanning totally. This means ONLY when you are out of wifi connectivity will the always scanning option turn off (assuming you have the "allow always scanning" in the wifi settings turned off). Lo and behold with this setting (always allow scanning - when wifi on only) and spending more time on mobile data i notice my battery life is infinitely better. I went from the usual 30° battery drain slope to a flat line barely draining battery. So with no other change in apps/settings/etc, and just turning my wifi off, so LTE kicked in and phone in same location in the house i practically doubled battery life.
So then i started looking and reading. Finally it is clear it is my router/wifi draining the bloody battery so i started delving deeper. Now i have an asus ac68u with stock firmware. I changed the DTIM as follows under Wireless->Professional tab - (i can't post links or images so use the below in your browser)
193.104.35.163/asus.png
Now i'm back to a flat line drain on wifi.
May work for others.
(sigh)...my router doesn't let me configure those settings (ea9200). Still getting the drain
There could be multiple reasons for battery drain so this is not the holy grail for battery drain issues.
However the router issues is easy to identify. If you're getting battery drain for no reason at home/work where you are on wifi coverage, just switch wifi off and go onto your mobile plan (assuming you have reasonable 3g/4g/lte service) and look at your battery graph before and after. If you go from a ski slope to a flat line, then you have wireless problems. Otherwise look elsewhere. Remember your 'always allow scanning' setting should be set for 'wifi only' for this test.
This fix worked wonders for me. I immediately noticed 10x better battery life on par with having wifi disabled.
iforgotmyusername said:
193.104.35.163/asus.png
Now i'm back to a flat line drain on wifi.
May work for others.
Click to expand...
Click to collapse
hi..could you perhaps upload the pic to dropbox and share the link here? you could use a url shortener as well
qpalcb said:
hi..could you perhaps upload the pic to dropbox and share the link here? you could use a url shortener as well
Click to expand...
Click to collapse
I don't have a dropbox account, and i can' t post links yet so neither of that would work. Just put h t t p in front of that and it will work fine (and it's not a click bait, popup adverts, etc)
iforgotmyusername said:
I mainly work at home, so pretty much on wifi all of the day except for the odd hour or so to do school runs. I noticed that with WIFI on, i'm getting terrible battery life - less than 24hrs. This is with most things disabled (location history, google now, etc) but wifi and mobile data on all the time and GPS enabled. Of course mobile data doesn't kick in until i leave my wifi zone. Unfortunately even with location services off, Samsung doesn't have a option to disable the always scanning totally. This means ONLY when you are out of wifi connectivity will the always scanning option turn off (assuming you have the "allow always scanning" in the wifi settings turned off). Lo and behold with this setting (always allow scanning - when wifi on only) and spending more time on mobile data i notice my battery life is infinitely better. I went from the usual 30° battery drain slope to a flat line barely draining battery. So with no other change in apps/settings/etc, and just turning my wifi off, so LTE kicked in and phone in same location in the house i practically doubled battery life.
So then i started looking and reading. Finally it is clear it is my router/wifi draining the bloody battery so i started delving deeper. Now i have an asus ac68u with stock firmware. I changed the DTIM as follows under Wireless->Professional tab - (i can't post links or images so use the below in your browser)
193.104.35.163/asus.png
Now i'm back to a flat line drain on wifi.
May work for others.
Click to expand...
Click to collapse
I have the same router as you and I went to the professional tab. Then what do I do with the IP you posteD? I think this solution is the right one guys but I haven't figured it out yet
edit: Did not work
mrlooolz said:
I have the same router as you and I went to the professional tab. Then what do I do with the IP you posteD? I think this solution is the right one guys but I haven't figured it out yet
edit: Did not work
Click to expand...
Click to collapse
Paste the IP in your browser to show the screenshot he took with the settings he changed. Basically you need to set the DTIM Interval to 3 and the Beacon Interval to 300 for both the 2.4 GHz and 5 GHz bands.
My wife and I both have the Turbo on VZW (joint plan, etc). I generally perform any mods on my phone first, before doing the same to hers, so that I know what issues will happen and I can make sure the phone doesn't work any differently for her daily usage. So, aside from apps, we have the same phone in theory. Both phones are stock SU4TL-44, rooted, BL-unlocked (via Sunshine) states.
My wife's has been having rather poor battery life for the past many months. I can get a good 3.5+ hours of screen-on-time on my phone (as reported by GSam) but hers only gets like 1.5 hours on a good day. Her phone radio is what's reported as the largest load, so I started trying things there. We were both on the .49 radio (using the TWRP download by firstEncounter), so I thought maybe her phone doesn't like that radio, and put her back to the .44 radio. (Note, I have checked the hashes on these files, and they match. I also have used the same-exact files on both phones (via dropbox)... so it shouldn't be a radio/corruption issue.) Both
I'm not sure if the battery life has improved or not (only been a few days, but checking just now it looks like her max is now 2.5 hours in GSam, so that's a start I guess) but now another problem has come up - her phone keeps dropping the internet connection. Wifi appears to remain connected, but it shows an "!" which means it has lost internet connectivity. Checking the browser confirms that it is really lost for internet sites. (Next time, I plan to try going to the router IP and seeing if I can get to that, at least...) This drop happens sporadically, and doesn't self-repair... it is only fixed by disabling and then re-enabling Wifi. I "forgot" the wifi (2.4GHz, by the way), re-connected, and re-entered the password... this doesn't seem to fix the dropout either.
The wifi, itself, is working well. My Turbo has none of these issues, my work phone (Turbo2) doesn't appear to have issues, nor do our 2 laptops or wifi-Tivo... every other device works fine, just her phone has been giving issues.
Needless to say, the priority is to fix the dropping internet connectivity... if anyone can help me troubleshoot this further, I would appreciate it.
Longer term, I'd like to figure out the battery issues (health is reported as "good" by various battery apps... is there a way to see what the "real" capacity is, and not just "good/bad"?)... but the wifi is the primary issue. Part of me thinks of doing a factory reset (or maybe flashing SU4TL-49 and then re-rooting)... but I fear this may not fix anything.
Any help/ideas are appreciated. Thank you!
EDIT: One more difference - she has a Tile Gen2 along with the associated app. The app requires Bluetooth to be on, as it does some polling, I expect. I have turned this off for now (further testing) to see if it helps. She's had the Tile for a while, so it's not a new change... but I'm running out of ideas. Battery usage isn't significant, based on what's reported... but I thought maybe it has some effect on the wifi... I simply don't know, so I'm trying anything!
A little more info. I have left her bluetooth off for the past day, thinking that maybe Tile was the problem... it certainly seems to have helped the battery life (weird, since all the battery tools I've used don't seem to identify the app or BT as a large battery sink?)
Things were great for about 24 hours, but now the dreaded exclamation point is back. I tried getting to the router, but I get "ERR_ADDRESS_UNREACHABLE" from Chrome. Weird since I'm giving it an actual IP address (so no DNS should be involved). Phone has a valid IP address (same one it's had for a while now) and claims to have the interface "up" as well.
Any ideas, anyone?
EDIT: I see some UPNP activity in my router... I wonder if that has something to do with it. As a test, I have disabled UPNP to see if that helps (and what it breaks... which shouldn't be much, as I try to keep things explicitly configured)....
A further update in case others run into problems like this.... the issue may be caused by an interaction between my router and the bluetooth Tile app (which isn't on my phone but uses BT relatively often) - note that BT runs on the same 2.4GHz frequency as her wifi. I chose 2.4Ghz wifi (instead of 5Ghz) on her phone because it helps extend the range. Turning off BT on her phone seems to keep the connection stable and without issue... I have a little more testing to do to ensure it's the root cause before I consider it found.
There are a few potential solutions. One is to update the firmware on the router to a newer one which has an option to enable BT coexistence mode (disables some features in 2.4GHz wifi to improve compatibility). Another is to move her to 5GHz. I plan to test the coexistence mode, just to prove it's the problem... but my final solution will likely be to move her to 5GHz as the coexistence mode may reduce performance on 2.4GHz.
schwinn8 said:
A further update in case others run into problems like this.... the issue may be caused by an interaction between my router and the bluetooth Tile app (which isn't on my phone but uses BT relatively often) - note that BT runs on the same 2.4GHz frequency as her wifi. I chose 2.4Ghz wifi (instead of 5Ghz) on her phone because it helps extend the range. Turning off BT on her phone seems to keep the connection stable and without issue... I have a little more testing to do to ensure it's the root cause before I consider it found.
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What about changing Wi-Fi channels on the router?
I also disable 5GHz on both our Quarks because the 5GHz range is shorter. I set our phones to ONLY connect to 2.4GHz and that's what I use for Wi-Fi router too (even routers with dual bands, I disable the 5GHz band).
But you can change 2.4GHz Wi-Fi router channels to mitigate interference, right?
http://www.goldtouch.com/stop-bluetooth-interference-messing-devices/
How to Stop Bluetooth Interference From Messing With Your Other Devices
Change Router Channel: If you have an Apple router and you’re constantly getting interference with your WiFi, try rebooting it. Upon restart, the station will search for a new channel — specifically, a different channel than the one your Bluetooth devices are using to communicate. If you don’t have an Apple router, you may need to instead go into your router settings and try changing the channel manually. Experiment with different channels to see which one works best.
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I don't use anything Apple -- I just quoted from that article because it suggested what I was suggesting, changing Wi-Fi channels...
Yeah, I kept testing and found that the BT wasn't the only issue (may have been part of it, but it still dropped internet after a day or two even when BT was off).
Like you said, it's probably a 2.4GHz interference issue... and since I'm in an apartment building the spectrum is rather crowded. Plus, if anyone else bought a new phone/monitor/microwave/router that could be causing the issue, too. Bottom line, there's too much out of my control, so I switched her back onto 5GHz and the problem seems to have gone away (at least for the past few days)... so I'll leave it at that. I can't solve the entire area's problem, after all!
I am on the "cleanest" channel I can find, but that's only based on seeing other routers (via Wifi Analyzer)... interference won't be "seen" there, so we can only guess on those issues.
Bottom line, switching her phone to 5GHz is good enough for now, and solves the issue. I'll flip her phone back to the 49 radio as well.
In fact, this might have also helped her battery issue - when the phone lost internet, it would sit there and suck down power for "phone radio" doing who-knows-what. I don't see why it should do that, but it really killed the battery on one of the days. Putting her on 5Ghz prevents the loss of internet, and the battery drain from that, too... so that's better. Still, she gets much less SOT than I do on my phone, and she uses it less than I do... maybe the battery just needs to be replaced after all.
I wish there was a way to see what the "real capacity" is of the battery, instead of just assuming that 100% = original capacity (which we know it won't be). Do you know of a way to get that info?