[Q] WiFi occasionally 'killing' routers - Nexus One Q&A, Help & Troubleshooting

Search function is currently unavailable, so apologies if this is a dupe...
Anyways, I'm currently running Rooted Stock 2.3.4 on my N1, and I've noticed that whenever I connect to my friend's DLink router (DIR-655, I think) the Wireless will work for some amount of time, but eventually it will stop working. And not just on my phone, either - the entire router stops working (at least for Wireless requests. Didn't have any wired devices connected to it). Thing is, last time I noticed it, it worked for quite a while - hour or two, maybe - then everything broke about 10 minutes after I received an email... At that point, the router needs to be rebooted, after which it continues working just fine.
The router is using WPA2 encryption, for what it's worth.
I've noticed this with previous versions of Android, so it's not a breaking change introduced with 2.3.4 or anything.
Unfortunately, I don't have an awful lot of Wireless routers to test with, and I haven't yet found an opportunity to test at home, so I'd be hard-pressed to say whether it's a router/D-Link problem, or if it's a device problem...
Has anyone else experienced this? Would flashing a custom ROM (e.g. CM7) fix this? Or would I need a new device? Any thoughts on what else I could do to debug this problem? As I said, this is a rooted device, with an unlocked bootloader and the latest version of Busybox installed.

I'm running 2.3.4 and haven't had this issue with this version or any previous ones.
I've had my phone disconnect from Google Services (the icons turn white instead of green), but the internet stays on and all other devices work just fine.
I have a Netgear router at home and a Linksys one at work and I'm connected to both the whole time I'm at either place.

Hmm... That's interesting.
I've never had Google Services disconnect, but I do have another issue with data randomly turning off. That's not a big deal, as I can just turn it actually off then back on again, and all is good.
Anyone else able to chime in with their experiences?

I have had this happen with cheap, crappy routers. Sometimes upgrading the router to DD-WRT helps, sometimes it doesn't. I had an ASUS this would happen to all the time, and an Airlink that this would happen to occasionally.
This doesn't ever happen to my Linksys WRT610N, and it never happened to an old ZyXEL X550.
I'm going to say, it's just a crappy router.

Thanks. Not really what I was hoping to hear, but that's life.
Did either bad router ever have this issue with other devices? One of the other folks living there has an iPad, and never has this issue, so I'm inclined to say it's at least partly my N1s fault. Also doesn't happen with any of the PCs connected to it.

Yeah, they actually did occasionally have issues with other devices. Hard to narrow it down because I have a ton of Wifi devices. The ASUS also seemed to go down based on time... after so long, it would just stop working properly. The Airlink seemed to get stuck based on demand and range. If I had my phone or laptop at the far end of the house and started using it a lot, it would get stuck. It was as if the router decided it was too much work to pump its signal that far and it would get tired.
Stock ROM on my N1 doesn't seem to allow it, but if you have a custom ROM, you might see if there is any way to set the Wifi to G-only. I had noticed on my old router that G wireless devices seemed less demanding for it.

Related

CM7 Wifi Needs to be restarted every 3mb

Ok this is not your typical "my wifi wont connect issue"
i have tried a fios router, linksys cisco router w/ dd-wrt and linksys router stock. I first had cm7 on sd and assumed that was the issue so I flashed to emmc. It works great but the wifi stalls after about 3mb of transfer (or a couple of minutes of light usage) and i have to restart wifi with the power widget and it starts working again. EDIT: droid x and moto bravo work perfectly with these routers at the same time of the issue.
I already disabled wifi sleep policy.
I am using CM7 stable installed to emmc. its works fantastic otherwise but this is making it completely ususable for me. I dont think its a bad wifi chip since wifi was solid with HC on sd and seemed fine with stock nook 1.1.0
if i try to install an app it dies 75% through, if i try to play a youtube video it buffers 75% and then dies. it seems anything more than a simple web page lookup kills the wifi stack.
I havent had time yet to really dive in (been porting CWM to the motorola bravo in most my spare time) but hoping there is a simple fix out there, maybe i need to switch to dalgrin's kernel? but it also mentioned wifi issues and seems 2 weeks older than the kerenl supplied w/ cm7 but i am not sure.
This makes the nook completely unusable. Id rather not flash something else, it seems other people are having success w/ cm7 so I would like to work this out.
any ideeas? thanks
that sounds like possibly defective hardware honestly.... But you say it was fine on other ROMs so I dunno. I have had fewer problems on CM7 than Froyo myself. In fact CM7 has been solid with wifi. I wander around a lot with my NC and use many access points.
Do you have a logcat dump per chance?
If nothing is in the log, what is output of dmesg? Anything there that might suggest what's going on?
Also you might try checking out the command line program "wpa_cli". See if it helps you narrow down the issue. You can turn on additional debugging there.
Or, if you know how to rebuild your uRamdisk, appending "-DD" to the wpa_supplicant line in init.encore.rc would also give you more info in logcat...
One last thought-- if you are using dalingrins oc kernel, he took out a lot of debugging stuff (for speed), so if you want more info, revert to cm's stock...
swaaye said:
that sounds like possibly defective hardware honestly.... But you say it was fine on other ROMs so I dunno. I have had fewer problems on CM7 than Froyo myself. In fact CM7 has been solid with wifi. I wander around a lot with my NC and use many access points.
Click to expand...
Click to collapse
I hope its no hardware, its over 30 days old, i didnt get the extended warranty and I have a ghost armor on the screen
good to know your wifi is solid w/ cm7 and its not a general cm7 wifi issue. what encryption are you using?
bandroidx said:
I hope its no hardware, its over 30 days old, i didnt get the extended warranty and I have a ghost armor on the screen
good to know your wifi is solid w/ cm7 and its not a general cm7 wifi issue. what encryption are you using?
Click to expand...
Click to collapse
You have 1 year manufacture warranty.
Hello-
Its very unlikely to be Nook issue. I have had this issue with laptops and its always the ISP or the router.
Hope this helps.
Cheers,
mg
I had almost identical symptoms. I disabled encryption on my router and have had zero issues since.
Sent from my NookColor using Tapatalk
the same thing was happening to me and it just seemed to stop one day.. i think it was after nightly 35 or 36
Sent from my NookColor using Tapatalk
Calla969 said:
I had almost identical symptoms. I disabled encryption on my router and have had zero issues since.
Sent from my NookColor using Tapatalk
Click to expand...
Click to collapse
Check out my thread on wifi http://forum.xda-developers.com/showthread.php?t=959823&highlight=dummies
My guess is that it's something in the wifi chip driver ir the wifi software stack. I have the identical symptom where on youtube, it stops after a few mb of download. (Note for mine it was stock NC with auto-nooter 3.0.0) The fix for mine was to set the router to 802.11 g only. So try this test:
1. set the router to 802.11 g only
2. turn off encryption
Let us know what happens.
I'm thinking that these devices have varying wifi quality.
My Nook Color is rock solid with wireless, regardless of encryption. WPA2 AES works as well as no encryption. I use my NC regularly with about 5 different access points around town. I'm using Dalingrin's 1100 MHz kernel with CM7 stable.
On the other hand I have a Motorola Droid that barely works unless I either turn off encryption or go to 802.11b! Those Droids were rather notorious for poor wifi. It does the same thing the OP mentioned - it stops transferring after a few megabytes although it says it's still connected. The wireless must be disabled and re-enabled.
It's AES, plain and simple. Turn it off on your router. if you're using WPA2, set it to WPA.
Your problems will go away. Now go to this thread, star it, and add your info please: http://code.google.com/p/cyanogenmod/issues/detail?id=3314
khaytsus said:
It's AES, plain and simple. Turn it off on your router. if you're using WPA2, set it to WPA.
Your problems will go away. Now go to this thread, star it, and add your info please: http://code.google.com/p/cyanogenmod/issues/detail?id=3314
Click to expand...
Click to collapse
Lol I was 99% sure of this. I had the same problem on 2.6.29 kernels on my dx. it magically went away on 2.6.32.
I am using AES, I was going to try to turn it off next, now I know
thanks.
Fattire, thanks, I checked wpa_cli and it just fails to find anything and the scans fail once the issue happens.
The one thing all those routers I tried had in common was AES, its the only thing I really trust. I guess i will have to setup a stub network and seperate AP for the nook color
thanks!
After setting the AP to WPA2/WPA Mode the Nook's wifi is working perfectly under CM7 (except for needing to be restarted after the screen is off when sleep policy is on but i beleive this is a common documented issue)
thanks!
I posted on the cm7 thread and hopefully they will get this fixed asap.

[Q] Wifi - problems..

Hi,
let me thank you for all the help you may give me.
The problem is i get stuck on obtaining ip address or the cell doesn't even try to connect automatically so i have to manually start the wifi connection to the network after turning on wifi.
The problem of my SGS not connecting automatically is rare, the first is not, it's actually quite often.
I looked through all the guides and sugestions but i couldn't find any permanent solution for this problem.
Note: I've used the AllShare app but sometimes even that doesn't work.
Thank you for all help
The same problem kept happening with me. Some of the fixes which I tried were
Change channel on router - didnt work for me
Use the allshare app first - worked
Set up a static ip in advanced settings - almost always worked
But I have found that I didnt have this problem with other routers, only mine, maybe because of a power problem with the router.
Many of baffling errors are usually caused by bad input power to devices.
Hope it helps
Thanks for the reply, the problem is that i use it alot on my university, where i can't do any changes to their router (or use static IP).
Also the AllShare app is indeed a fix, but only if used every time i think. I'll do some more testing, this problem is really annoying and that's a shame because it complicates the use of most of the smartphone capabilities.
So if anyone else as another solution i would be glad to hear it.
Also i'm on stock rom installed by my operator Vodafone (had the same problem on JPY).
Edit: After a very quick test, it seems that using Allshare once does work, but i had the impression that sometimes it would be needed more than once (even without rebooting). TY for the tip.
Update:
After some more tests i came to the conclusion that at home i need to use AllShare every time i want to connect to my network.
This seems to be a problem affecting several users of SGS, does anyone know the answer to this problem? Or at least an app that minimizes it?
It's quite bad and very frustrating. Thanks, for any and all help.
I had the same problem with stock Android 2.2.1 on 3 phones all Galaxy S. Dropping the packages on voip calling, internet was slow most of the time. I use a linksys wrt54g with dd-wrt, I never had problems with any other devices.
My problem was solved when I installed GingerReal. Also on Miui I didn't had any problems with the wifi connection.
Maybe is just the stock driver incompatibility with some devices.
Thanks for the reply,
I've only had bad experiences with flashing, last time i did everytime right and Odin just hanged, i almost had a serious problem in my hands.
Since this is probably the first and last good phone i'll ever have, i would really like not to kill it (also some people in my family would be very disappointed, it was a gift).
So any workaround? Sorry i'm so insistent but i think that are a lot more people interested in this. TY.

Nexus One Wifi Trouble

So chances are you haven't seen me, I'm relatively new to the N1 forums, but not new to hacking/modding (had an Evo 3D before this). I just grabbed this off of Gazelle for a fair price, and supposedly it was fully working.
The N1 had come rooted and running OxygeN1 ROM and everything worked perfectly fine, except for the fact that it doesn't seem to want to find any wifi signals.
Now I'm in the process of selling my Evo 3D, but I haven't sold it yet, and it still connects to wifi (shows I have a valid signal, two bars, etc.), however when I turn wifi on my shiny semi new N1, it supposedly scans, but doesn't pick up the fact that there are any wifi signals around. This is a bit problematic, as the SIM card I bought for it is still being shipped. In other words, when my 3D is gone I'll essentially be without a phone until I can activate it on T-Mobile.
So I suppose the main point of this is, why isn't my N1 connecting to wifi? Any ideas? (router is a,b,g,n compatible by the way, so it can't be that it only fires off "n" signals)
Or perhaps a method to revert it back to 100% stock to see if it works on that?
thebeastglasser said:
So chances are you haven't seen me, I'm relatively new to the N1 forums, but not new to hacking/modding (had an Evo 3D before this). I just grabbed this off of Gazelle for a fair price, and supposedly it was fully working.
The N1 had come rooted and running OxygeN1 ROM and everything worked perfectly fine, except for the fact that it doesn't seem to want to find any wifi signals.
Now I'm in the process of selling my Evo 3D, but I haven't sold it yet, and it still connects to wifi (shows I have a valid signal, two bars, etc.), however when I turn wifi on my shiny semi new N1, it supposedly scans, but doesn't pick up the fact that there are any wifi signals around. This is a bit problematic, as the SIM card I bought for it is still being shipped. In other words, when my 3D is gone I'll essentially be without a phone until I can activate it on T-Mobile.
So I suppose the main point of this is, why isn't my N1 connecting to wifi? Any ideas? (router is a,b,g,n compatible by the way, so it can't be that it only fires off "n" signals)
Or perhaps a method to revert it back to 100% stock to see if it works on that?
Click to expand...
Click to collapse
Have you tried to flash a different ROM or reboot your router? Or tried the WifiFix app?
I've tried the router one, I have not yet flashed another ROM (I'd like to learn a bit more about the device first) although I have done a factory reset.
I have not however, tried the wifix app... I'll have to try that.
EDIT: I tried Wifi Fixer, but it still wouldn't connect.
EDIT2: Just tried this ROM, and it still won't connect. Any other ideas?

Wireless Connection dropping constantly

Hello, I recently got my HTC ONE, and discovered that HTC has a serious issue with wifi connectivity. I had a HTC desire a couple of years ago and got rid of it after noticing wifi connection constantly disconnecting and reconnecting (it stays off for 1 - 2 seconds, then reconnects) even if I was standing right next to the router. But now it seems that HTC ONE has the same damn problem. I DID all things indicated in other posts, like check the best wifi performance option, tried 2,4ghz only, auto, nothing works. This happens more often when 3g wcdma is on, but it still disconnects on gsm only, so I doubt it has anything to do with cellular antenna. The phone is brand new, I doubt that taking it to service and getting a new one will solve anything. What is there to be done?
And another thing that bugs me. Lets say autobrightness is off rights? When the background is dark the backlight still goes down, and when its white it goes up, just a bit. and the transition is very lame, as its soo obvious, it goes up and down in steps that last 20ms. but its visible and annoying to look at. any patch or soft for this? Thanks!
Are you on stock rom?
I might be imagining it, but ever since leaving stock for arhd 4.1.2, and even now on 4.2.2 the wifi seems to me to be less stable. However the 3g/lte isn't bad.
Hopefully will be fixed on future releases /source code releases from htc..
Sent from a pizza
I'm on arhd 10.1 and have absolutely zero WiFi problems. Zero
Sent from my HTC One using xda premium
Im on android revolution 10.1 4.2.2 also. still got wifi issues.
I'm having the exact same problem on my brand new stock HTC One
Constantly connects and drops two seconds later all day and drains my battery.
jensenkd said:
I'm having the exact same problem on my brand new stock HTC One
Constantly connects and drops two seconds later all day and drains my battery.
Click to expand...
Click to collapse
Same thing with me. Brand new HTC One, only a week old. Right out of the box, I was having the same wifi issue you describe here. I did some searching and a couple of people said the issue went away when they installed the ViperOne ROM. So that's what I did. Same problem.
This is frustrating. My friends all gave me crap when I decided to go back to Android after being on Windows Phone 8 for a year... telling me I'm going to have to deal with poor battery life, etc. I laughed at them. Now they're laughing at me.
I'll have to look into arhd 10.1 and see if that helps.
Okay, this was weird. So, I performed a nandroid backup of my current state, flashed ARHD 40.3 (after wiping and deleting everything) and I had the same wifi drop issue in ARHD! So, since I preferred ViperOne anyway, I went back into recovery did another wipe/delete of everything and restored the nandroid backup I made right before flashing ARHD. Boo yah! I haven't had the wifi drop problem since! Ha! No idea... maybe I just needed a cleanup? I'd already tried wiping the cache before, to no avail. Strange... but happy it's working now.
Mike
mkclarke said:
Okay, this was weird. So, I performed a nandroid backup of my current state, flashed ARHD 40.3 (after wiping and deleting everything) and I had the same wifi drop issue in ARHD! So, since I preferred ViperOne anyway, I went back into recovery did another wipe/delete of everything and restored the nandroid backup I made right before flashing ARHD. Boo yah! I haven't had the wifi drop problem since! Ha! No idea... maybe I just needed a cleanup? I'd already tried wiping the cache before, to no avail. Strange... but happy it's working now.
Mike
Click to expand...
Click to collapse
Never mind... it's back to doing the same thing. Very annoying. It only worked right for about half a day, then went back to dropping the wifi constantly. I don't know what to try next.
I've never had problems with WiFi-dropouts on my HTC One, used both 10.1 @ 4.2.2 and now 40.3 @ 4.4.
However I have dropouts on my Samsung Galaxy S4, where it claims my network is unstable (connected with 5 GHz). The S4 is stock, no mods what so ever. It's only unstable at my home router, never at work or anywhere else. I use a Jensen 3000DG. Never tried 2.4 GHz at home, so I don't know if it's the band or the router itself that's the problem. It can be one of many reasons.
My point being, if you haven't tried already, try a different router or try either 2.4 or 5 GHz.
If you are certain the problem lies with your phone, I would return it to seller on warranty.
mkclarke said:
Never mind... it's back to doing the same thing. Very annoying. It only worked right for about half a day, then went back to dropping the wifi constantly. I don't know what to try next.
Click to expand...
Click to collapse
Another thing I just realized, it could be an IP-conflict within your local network. I.e. if your phone asks for an ip-address from the wifi-router, which tries to give out an ip-address that's already in use by another device. Can often happen if one or more devices has a static ip, or if the leasing period of an ip has just exceeded and the device still holds the ip even if the router has released it.
If this is plausible, get some info on your home network (ip-ranges, gateway, etc), and give your htc a static ip in the higher range.
I.e. if your router's gateway is 192.168.0.1, and it gives out from 192.168.0.101-199, give your htc something like 192.168.0.190.
Otherwise, like mentioned earlier, try a different router...

wifi disconnects for unknown reasons

My SM-N900A has been working great for a few years now and is running Android 5.0 from an OTA update (maybe a year ago). A few weeks ago I started having trouble with the wifi. Sliding the wifi control to "on" will sometimes work, but more often it can't find any networks. Often rebooting will fix it, and the wifi will connect (showing a strong wifi signal). Sometimes I see it rescanning several times when I don't think it should be scanning. Then after a few minutes or occasionally up to an hour it will disconnect from the wifi entirely and refuse to show any networks as before. Sometimes I have thought that disconnecting the battery is a surer way to restart the wifi than just rebooting, but it is hard to be sure. This happens with my home wifi, as well as with several other wifi networks I have tried. I haven't dropped or damaged my phone, so I'm wondering if this could be a software problem. I have tried rebooting in safe mode, but the problem persists so I don't think this is caused by an errant application. I have also tried swapping in my spare battery, but that didn't change the problem (although neither battery is a genuine Samsung). If I leave wifi off and just stick to the cellular connection, the phone seems to work as it should. Would there be any logic to trying one of the alternate ROMs on this forum to see if this could fix the wifi problem? One reason I haven't tried this already is that the directions I've seen for installing these ROMs seem to be written for people who have done this dozens of times (which I have not). If this is a reasonable tack, is one of these ROMs known for its ease of installation, or perhaps for the quality and detail of its installation instructions? Are there any less drastic things I should be trying first (other than buying a new phone of course)?
Got the same issue. used odine reinstall 5.0 modem/radio and when that did work, i reinstalled 5.0 and 4.4.4 but nothing worked. i think its a hardware failure. time for a new phone.

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