WiFi lag - Galaxy S III Mini Q&A, Help & Troubleshooting

I think I found a problem with the WiFi drivers. I was playing Pocket Legends and when I was on WiFi I often got lag spikes. Everything was halting for like 2 seconds and then it got unstuck, replaying whatever happened in those two skipped seconds.
I starting doing tests to see why this was the case. I used Wireshark to find the IP of the game servers and pinged it. In the endI tried a traceroot to see which hop was causing the lag, it was the hop from my mobile to my router.
Whenever I ping my router (192.168.0.1) I get roundtrip times near 40ms. And the longer I am connected to the WiFi (or for example if I play for while using the WiFi) the worse the pings get. After some time pings can be very unstable ranging from 20ms to 400ms. Again: I am talking about pinging my router!
Pinging my router from my PC gives ~1ms. I tried from my old Neo V and I get similar results (even worse actually for a fresh connection). I wondered if it was my router that caused the lag so I asked a few friends to redo the test on their phones in their houses. One of them saw pings of 16ms and the other one ~40ms.
Is this normal for Android phones? I guess it is some battery saving feature but why does it get worse the more I stay on the connection and why does it get back to normal pings when I restart my WiFi?
I even disabled DroidWall but it didn't help. The only thing that helps is restarting the WiFi connection.
Can someone please try pinging his/her router and give me the results? Just open up a terminal, type "ping 192.168.0.1" and stop it afterat least 50 pings. Then give me the 4 resulting numbers (min/avg/max/mdev). To stop the ping command press volume down once and then type c on your keyboard.

Can someone do a ping test as I described? If this is a general problem then it's quite serious.
Sent from my GT-I8190 using xda app-developers app

Related

AT&T Tilt: Absurdly slow wifi

I'm not quite sure what sort of issue is plaguing me, but I'm experiencing very slow browsing when using my wifi connection. It does not seem to be any sort of network issue, as I have several computers on the wifi that get great connections. I've tried several browsers, including IE, Minimo, Opera Mobile, and Opera Mini. All with similar results: incredibly slow/laggy browsing (speed tests are just painful). What seems peculiar is that sometimes, it will run very fast, then seem to "stick" while loading a page. For example, I might be on cnnmobile, then want to go back to my homepage, google. That can take upwards of 30 seconds at times, or just a couple seconds other times. Another oddity I've noticed is that if a page is "sticking", I can often refresh it and have it load up very quickly.
The potential issue that's been pointed out to me by several people is "proxy". I downloaded and installed a disable hidden proxy program from xda, but it did not seem to resolve the issue. If anyone can help me out here, I'd really appreciate it a lot. Thanks
Is the normal data connection as fast as it should be or is it painfully slow as well?
To be honest, I have noticed slow WiFi too. Its not that much faster than my 3G connection (700kbps). For example, I just ran a mobile speed test from DSL reports through the Tilt's WiFi, and I got 1068 kbps with a ping of 213 ms. Compare that to a similar test on my desktop that got 4086 kbps with a ping of 36 ms. I really don't understand what's going on with the Tilt's WiFi. I mean, sure its better than 3G, no doubt, but come on. A ping of 213 ms when the access point is less than 10 feet away and the internet connection is wired! I know my laptop can fare better than that over wireless.
Is anyone else seeing numbers like these? Maybe its the encryption? Although, I am only running WEP on the router, because I want my DS to be able to connect with it.
EDIT: Well, I don't think its that. I tried disabling WEP on my router to see if it would speed things up. I got 1195 kbps and a ping of 226 ms. I guess that means there is a bit more downstream, but I would take these results with a grain of salt, because I still feel like the numbers are too close to call. Besides, the ping wasn't any better.
Oh, and just in case anyone is wondering, I am running the TCP/IP tweaks from KaiserTweak and I ran the tests with the phone disabled just to be sure.
You might want to try this....
-click start
-click settings
-select the connections tab on the bottom of the screen
-select the Wireless LAN icon
-select the Power Mode tab on the bottom
-slide the bar to "Best Performance"

Question on range of Wifi on Note?

Just wondering if anyone else notices poor range with the wifi on the Note? I switched from an iPhone and noticed the range on the Note doesn't seem as good.
Otherwise, loving the Note!
divinestyler said:
Just wondering if anyone else notices poor range with the wifi on the Note? I switched from an iPhone and noticed the range on the Note doesn't seem as good.
Otherwise, loving the Note!
Click to expand...
Click to collapse
it's not only the Note I would suffice as being weak on WIFI... all android phones have some wifi issues.. e.g. always saying "Obtaining WiFi address..." and etc.
it's not the device that is actually having the issue rather it is how Android is implemented. Between any other OS, windows, symbian, IOS, blackberry OS... android seemed too far distant in managing Wifi capabilities and reception. I know this for the fact that when I had my E7 before, I used to connect to public wifi hotspots without any issue at all. Simulating it back on my S2, and on my Note... it takes some considerable time before my device would connect to the hotspot.
Again bud, nothing to worry about.. your not alone on this... this issue (on my end though) happens only if my note scans public hotspots first time.,and takes really a couple of minutes to connect to the said wifi connection....sometimes even the connection fails.. and I have to reconnect again... but eventually it will connect (it would say 'connected').
So cheerup... to sum it up again, its not your device.. but the OS itself that needs some revisions from Google itself.
Don't forget to hit 'Thanks' if I've helped you someway or the other.
letters_to_cleo said:
it's not only the Note I would suffice as being weak on WIFI... all android phones have some wifi issues.. e.g. always saying "Obtaining WiFi address..." and etc.
it's not the device that is actually having the issue rather it is how Android is implemented. Between any other OS, windows, symbian, IOS, blackberry OS... android seemed too far distant in managing Wifi capabilities and reception. I know this for the fact that when I had my E7 before, I used to connect to public wifi hotspots without any issue at all. Simulating it back on my S2, and on my Note... it takes some considerable time before my device would connect to the hotspot.
Again bud, nothing to worry about.. your not alone on this... this issue (on my end though) happens only if my note scans public hotspots first time.,and takes really a couple of minutes to connect to the said wifi connection....sometimes even the connection fails.. and I have to reconnect again... but eventually it will connect (it would say 'connected').
So cheerup... to sum it up again, its not your device.. but the OS itself that needs some revisions from Google itself.
Don't forget to hit 'Thanks' if I've helped you someway or the other.
Click to expand...
Click to collapse
I don't think the OP was asking about why it takes long to connect to wifi. They want an explanation of why it won't stay connected when he is a far distance from his router. My suggestion is to check the settings that are best for the Note hardware and adjust your router settings accordingly. If you still have a problem then it will be something that is obstructing the signal of the router. I had the same problems with my Linksys router until I adjusted the settings to fit my devices better.
Deth Becomes You said:
I don't think the OP was asking about why it takes long to connect to wifi. They want an explanation of why it won't stay connected when he is a far distance from his router. My suggestion is to check the settings that are best for the Note hardware and adjust your router settings accordingly. If you still have a problem then it will be something that is obstructing the signal of the router. I had the same problems with my Linksys router until I adjusted the settings to fit my devices better.
Click to expand...
Click to collapse
If you look in a bigger spectrum bud, you will see that WIFI connection AND issues have always been one of the perennial issues in android. Not just with the Note, but includes the Moto Droid, Vibrant and even the htc one X as well. The OP states that he is using the same wifi connection on his Iphone and he doesnt have that issue at all. Only on his Note. So on my understanding on what you say.. How could it be a router setting or an 'obstruction on the signal of his router' if and if he can connect perfectly fine on his Iphone? given the two phones on 1 wifi infastructure.. only his Note fails.. the Iphone doesn't. What's your take on that?
@OP
anyway, You can try to see if you can download and run this app from playstore.. it's called Wifi fixer. Download that and see how your poor wifi range connection fares.
Cheers.
letters_to_cleo said:
anyway, You can try to see if you can download and run this app from playstore.. it's called Wifi fixer. Download that and see how your poor wifi range connection fares.
Click to expand...
Click to collapse
Great, thanks for the suggestion - downloading and will try it out! :good:
Just a followup: Tried wifi-fixer but didn't seem to help address the range issue, but thanks again for the suggestion. Any other ideas to resolve?
As for the poor wifi range for the note this is a noticeable issue we all encounter in compare to other mobiles vendors now i even have my access point over my bed and still not got full signal , for the lag in authentication and connecting time i found that playing with diffrent types of wifi encryptions on ur router or accesspoint side will solve this issue, i have no problems in that.
↖(^▽^)↗ Sent from Rego Galaxy Note ↖(^▽^)↗
So is this a hardware issue? I've played with various roms (criskelo, kingdroid, rocket, stock, etc) and they all seem to have the same range issues. Just curious.
divinestyler said:
So is this a hardware issue? I've played with various roms (criskelo, kingdroid, rocket, stock, etc) and they all seem to have the same range issues. Just curious.
Click to expand...
Click to collapse
try latest modem, buffer tweak for build.prop, try wifi high performance widgets.
then you will realize that it drink more juice when you increase the performance, it wont be able to beat intel's wifi(4-5bars) or linksys wifi(2-3bars), but at least you will see 1-2bars.

[Q] Any Issues with WiFi

Loving the phone really, one thing i have noticed is when ever im downloading or uploading large files through my home WIFI after a short period the phone disconnects from the network and i have to reconnect manually. Any ideas is anyone else having the same issue. All my other devices are fine
Same thing here, but it reconnects itself - just losing the connection for 1-2 seconds. It happens sometimes even when browsing the web. Most likely some kind of software bug.
Had similar symptoms when playing with the phone at work`s WiFi (1st day of usage). On my home WiFi nothing wrong at all.
Make sure that keep WiFi on during sleep is always.
Or the WiFi will turn off the moment u turn the screen off
Sent from my C6602 using xda app-developers app
abd_alazeez2002 said:
Make sure that keep WiFi on during sleep is always.
Or the WiFi will turn off the moment u turn the screen off
Sent from my C6602 using xda app-developers app
Click to expand...
Click to collapse
Yeah checked that it happens even with the screen on. i got the screen to stay awake when charging and usually download my big files the i gave up trying to download A Bards Tale last night.
marcgear said:
Loving the phone really, one thing i have noticed is when ever im downloading or uploading large files through my home WIFI after a short period the phone disconnects from the network and i have to reconnect manually. Any ideas is anyone else having the same issue. All my other devices are fine
Click to expand...
Click to collapse
it happens sometimes in s3, s2, xS and etc
it s a bug and will repair by software update or flashing another rom/firmware by urself if know wht to do.
abd_alazeez2002 said:
Make sure that keep WiFi on during sleep is always.
Or the WiFi will turn off the moment u turn the screen off
Sent from my C6602 using xda app-developers app
Click to expand...
Click to collapse
I found that WiFi is one of the most power draining things on phones. The best thing would be to switch to mobile data while sleeping and turn wifi off during that time.
That way you can still receive everything, but since you're sleeping you will barely use any data at all.
To bad the phone can't do that automatically.
I'm getting frequent wifi drops in my home (netgear router, wpa psk security) and its also affecting other devices in the house! Other wifi networks I've connected to seem to be fine, no issues whatsoever. Sometimes it'll say its connected, but no data, other times it will disconnect entirely.
This is a VERY strange problem and the fact that its affecting the wifi connection to other devices is even stranger.
Just an update on this, I returned my phone to P4U this morning as the wifi thing was annoying me and the phone has eaten 823mb of mobile data in one weekend even though i had mobile data turned off and connected to WIFI, The handset said i used 115mb and Voda said 823mb. not the only reason i returned it but it needed changing. So got my new handset up and running this afternoon and im set up and i been downloading all my files and apps with out any problems.
So looks like i had a dud phone first time around.
Xperia rebooting fibre broadband gateway???
hanleyco said:
I'm getting frequent wifi drops in my home (netgear router, wpa psk security) and its also affecting other devices in the house! Other wifi networks I've connected to seem to be fine, no issues whatsoever. Sometimes it'll say its connected, but no data, other times it will disconnect entirely.
This is a VERY strange problem and the fact that its affecting the wifi connection to other devices is even stranger.
Click to expand...
Click to collapse
Getting the same problem too. All my other devices (Nexus7, Ipad, PC) can connect fine to my wireless home network (fibre). But when I start connecting my Xperia Z to the wireless network, after 5 mins, my Gateway will hang, and restart itself. Happens all the time without fail as long as I have my phone hooked up to the wireless network.
Anyone else facing this problem?? I'm kinda at a loss now on how to solve it. Tried adjusting settings on my wireless channel too but doesn't seem to help. Any help will be greatly appreciated!!!
xentay said:
Getting the same problem too. All my other devices (Nexus7, Ipad, PC) can connect fine to my wireless home network (fibre). But when I start connecting my Xperia Z to the wireless network, after 5 mins, my Gateway will hang, and restart itself. Happens all the time without fail as long as I have my phone hooked up to the wireless network.
Anyone else facing this problem?? I'm kinda at a loss now on how to solve it. Tried adjusting settings on my wireless channel too but doesn't seem to help. Any help will be greatly appreciated!!!
Click to expand...
Click to collapse
Ok, so i reckon this could be an issue with not having a static I.P address. Gonna change it tonight when I get home and see if the problem is solved. It's either that or it may be trying to connect to a port thats used for something else? Have ports assigned for my Xbox ect. I'm not too knowledgeable about these things so any other suggestions are welcome. Not too many settings on the phone unfortunately so the problem has to be solved using the router I'd say.
hanleyco said:
Ok, so i reckon this could be an issue with not having a static I.P address. Gonna change it tonight when I get home and see if the problem is solved. It's either that or it may be trying to connect to a port thats used for something else? Have ports assigned for my Xbox ect. I'm not too knowledgeable about these things so any other suggestions are welcome. Not too many settings on the phone unfortunately so the problem has to be solved using the router I'd say.
Click to expand...
Click to collapse
I have static ip set up since the beginning, and I also have the problems. Only my problem seems to stem from 2.4 GHz/ 5 GHz (if this is even possible). 5 GHz is the preferred one, but this one seems to be out of range sometimes and it switches to mobile data. The 5 GHz is then out of range, while the 2.4 GHz is not. Very strange.
Ive found the Xperia Z has held on to a 5GHz Wi-Fi signal better than any other device I've used before, but the 2.4GHz can often disappear...
Very odd, although at home I am quite happy that 5GHz works better as there's far less interference from local neighbours. Perhaps that's causing the problem - in that the XZ isn't so well set up to cope with other routers on the same Wi-Fi channels??
The reach of my 2.4 GHz is at 75%, while 5 GHz is at 50%??? Strange.
I would always expect 2.4GHz to carry further, and so I am surprised by my experience too.
In my case, there's only 1 5GHz router visible other than mine, but countless 2.4GHz ones. Not sure why that would make the XZ drop (and sometimes even lose) the connection - but that's what seems to be happening.
Xperia Z no wi-fi without SIM
I have a different wi-fi issue with my Xperia Z. It does not connect to my home wi-fi when there is no SIM in the phone. It just says that the network is out of reach. When I pop in the SIM card, it connects automatically. Actually, all the hi-end Sony phones I tried recently do this (Ion, T and more). I've been looking for a solution here on the forum, but didn't find any helpful topic. But maybe I was looking wrong. Does anyone know, what to do?
lvoky said:
I have a different wi-fi issue with my Xperia Z. It does not connect to my home wi-fi when there is no SIM in the phone. It just says that the network is out of reach. When I pop in the SIM card, it connects automatically. Actually, all the hi-end Sony phones I tried recently do this (Ion, T and more). I've been looking for a solution here on the forum, but didn't find any helpful topic. But maybe I was looking wrong. Does anyone know, what to do?
Click to expand...
Click to collapse
I think the obvious answer is put a SIM in there... and if that means getting any old SIM and cutting it to size, even if it's not registered on any network, then do that.
I wonder if it the phone is looking at the SIM to identify the country, and therefore what channels can be used? I say this because when I first used the phone (without SIM) I also had problems [router not showing up in a scan], and my router is on channel 13. I then put in a SIM and at some stage did another scan and it found my router.
Is your router perhaps on channel 11, 12 or 13?
I know it's a long shot, but who knows?
jonmorris said:
I think the obvious answer is put a SIM in there... and if that means getting any old SIM and cutting it to size, even if it's not registered on any network, then do that.
I wonder if it the phone is looking at the SIM to identify the country, and therefore what channels can be used? I say this because when I first used the phone (without SIM) I also had problems [router not showing up in a scan], and my router is on channel 13. I then put in a SIM and at some stage did another scan and it found my router.
Is your router perhaps on channel 11, 12 or 13?
I know it's a long shot, but who knows?
Click to expand...
Click to collapse
Interesting point, will try to investigate with the channels. And I may also try to dig out some inactive SIM, thanks for the tip... The only thing I found is, that the problem obviously appears only with the WPA2-PSK security. With WPA, its all a-OK...
If you look inside the build.prop
The wifi.channel is not assigned,maybe this can gives you an idea guys.
Sent from my C6602 using xda premium
My 2.4GHz has autochannel and 5Ghz is @ 44.

High battery drain on *some* WiFi networks

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.

Nexus 6 WiFi issues

Well I've recently started getting issues with the WiFi connection.
I'm sitting a few feet away from my router and should be getting full signals. But what I really get is full signals for a second, then 1 signal, then 2, 1 again, and then the WiFi disconnects and then reconnects.
I'm able to browse the internet fine ( with small breaks when it disconnects and reconnects ) but my phone has started to heat up. I've noticed it only heats up this much when using WiFi.
Any fixes or causes for this problem ?
Your Wi-Fi router is compromised. Do a Google search for chameleon. That's all I can tell you do to NDA.
Ya I agree router issue I had similar problem were I would drop wifi signal at home and had to restart phone to reconnect... Exchanged router and all is well.... AT&T n6 stock
Sent from my Nexus 6 using XDA Free mobile app
I'll check this out. Thanks.
I agree with others. Definitely a router issue I'd say. No problems for me.
Pr0DiGYs- said:
. . . but my phone has started to heat up. I've noticed it only heats up this much when using WiFi.
Any fixes or causes for this problem ?
Click to expand...
Click to collapse
When the phone had root access, you could change the WiFi interval.
I changed it with the build.prop editor. I changed the value of wifi_supplicant_scan_interval from 10 tot 200.

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