Develop Bugs

Wi-Fi unreliable

Recently I've been having problems with Wi-Fi. My phone and nexus 7. They both stay on blue bars all the time claiming they're connected to Google servers. And it'll work good for about 20 seconds and then I'll have no connection for about a minute. Bars will stay blue like its connected and WiFi show that it's fill signal but pages won't load, apps will timeout and YouTube videos won't stream. Makes it impossible to download any Roms or apps at times. This just recently started happening. Videos will stream good for maybe 2 minutes tops. Then pause, after a minute Wi-Fi will stay streaming and going again by itself and stream. I haven't changed my router or is settings. I have static ip's assigned too. All other computers work just fine for internet. Never a problem.
I've tried changing kernels, Roms, complete wipes and reinstalls. Rebooted the router. Nothing fixes it. I'm getting really frustrated. I'm at the point where I'm going trio go buy a new router just cause I want to use 5ghz. Anyways, any suggestions to solve this?

There may be an error in aosp code that can cause wifi instability: http://forum.xda-developers.com/showpost.php?p=35146886&postcount=5128

mwalt2 said:
There may be an error in aosp code that can cause wifi instability: http://forum.xda-developers.com/showpost.php?p=35146886&postcount=5128
Click to expand...
Click to collapse
Weird how it affects just my device in an entire thread with a ton of people using the rom and same kernel.
I went and picked up a new router. I'll see if that fixes it. Thanks for the input though. I appreciate it.

Didn't help with new router. My WiFi still cutting out like crazy on Franco kernel. Almost as soon as I turn off screen. But its not turning WiFi off. Just goes into some sort of state where nothing comes through. When screen on everything is fine though now.

In Wifi settings, you could try unchecking "Avoid Poor Connections" and see if that helps.
Also do you have any other devices at home on the same wifi network - do they experience the same issues, I know where I am if we get a lot of rain, it causes intermittent internet slowdowns, I had similar issues and after testing other devices found this to be my problem not my Wifi.
Also, have you got any cordless phones in the house that might run on the same frequency?
I still have an issue keeping wifi at 100% d/l when the phone is asleep, even though the setting is for always on. It must be a hardware thing for me because every rom I've tried from ICS to the latest JB exhibit the same issue. If I am in a desperate need to d/l a large file on my phone, I just temporarily change the screen display off timer to 10 minutes of so so the wifi will stay at max d/l speed.

https://play.google.com/store/apps/details?id=com.ratcash.wifiperf
Could try this I use on my gnex for voip
Edit I am on a galaxy nexus forum
Sent from my Nexus 7 using Tapatalk 2

Ya avoid poor connections is unchecked. And wifi optimization is unchecked. I've tried putting my router on full auto, tried setting static ip addresses for everything. Changing from wireless n to wireless g. Changing security to off as well. Using the 5ghz band instead of 2.4. The nexus 7 is working perfectly fine with the new router. But my galaxy nexus is totally unreliable. Weird is that it just started happening within past couple weeks. And actually, it was good for the first day or so after new router. I can confirm all other wifi devices jn the house work just fine without any hiccups. I've never had a problem with other devices. No dropouts or anything. It's really puzzling me!
One thing I found weird, if I disable wmm on my router, my nexus 7 and galaxy nexus will not connect. Anyone else get this?

I hope you also have your router firmware completely up to date.

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CADude said:
I hope you also have your router firmware completely up to date.
Click to expand...
Click to collapse
Ya my router auto updates itself. Its a Cisco EA6500 in case your wondering and is helpful.

I use my wifi at work and it's very unreliable. At times going into an endless disconnect/reconnect loop. Sometimes restarting the wifi helps or putting it in and out of airplane mode. Other times nothing helps except a reboot of my phone. Some apps may make the issue worse. I don't think there is a fix and waiting for google to fix the flaw a user pointed out earlier.
Sent from my Nexus 7 using Tapatalk 2

chrisinsocalif said:
I use my wifi at work and it's very unreliable. At times going into an endless disconnect/reconnect loop. Sometimes restarting the wifi helps or putting it in and out of airplane mode. Other times nothing helps except a reboot of my phone. Some apps may make the issue worse. I don't think there is a fix and waiting for google to fix the flaw a user pointed out earlier.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
Possibly a 4.2 issue. But its not affecting everyone it seems. But i see that there is a huge thread about this at the google site. Not an isolated case

When you say you set a static ip, you set one from the router, have you tried setting a static ip on the phones wifi advanced options as well?
Have you tried different radios?
Sent from my Galaxy Nexus using Tapatalk 2

Yup has happened to me mine connects to the net but has grey bars and doesn't open any websites and apps dont connect to the net a reboot solves the problem

chrisinsocalif said:
When you say you set a static ip, you set one from the router, have you tried setting a static ip on the phones wifi advanced options as well?
Have you tried different radios?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
I set static on both router and the phone. I've tried all the north american radios. None of the euro ones. no effect. Sticking to the latest North American radio for now. I've managed to make it work sorta with CM10.1 with stock kernel on completely fresh install. It works, but the down arrow on the Wi-Fi icon stays lit almost 100% of the time. no idea why, only other device that was on all yesterday was the nexus 7, and that was on the 2.4ghz and phone the 5ghz. Huge wlan_rx_wake!

It's likely this:
http://code.google.com/p/android/issues/detail?id=40065&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars&start=1000
See if that sounds about right and if so, you'll just have to wait for a Google Patch.

whitedragonz83 said:
It's likely this:
http://code.google.com/p/android/issues/detail?id=40065&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars&start=1000
See if that sounds about right and if so, you'll just have to wait for a Google Patch.
Click to expand...
Click to collapse
Yeah. Just don't understand how so few here experience this. And only my phone, not my nexus 7 gets this.

M3drvr said:
Yeah. Just don't understand how so few here experience this. And only my phone, not my nexus 7 gets this.
Click to expand...
Click to collapse
When i first updated to 4.2, I was getting crazy dropouts. After unchecking the Wi-fi optimization, it was more consistent but still drops out frequently while at work. There is a known bug with the wifi driver that hasn't been addressed for years, but still trying to find the original articles describing the problems.
It seems you are having tons of issues, worse than most.
If you are having a problems suggested on this site, maybe this can help.
http://goo.gl/voSxF

It affects me as well. Completely random. Everything appears fine except that instead of blue, the icons are grey. Turning off wifi and turning it back on fixes it.
In the link above, there is a comment where you can submit more info for Google to help solving the problem:
http://support.google.com/nexus/bin/request.py?contact_type=bugreport&src=7679593

chrisinsocalif said:
When i first updated to 4.2, I was getting crazy dropouts. After unchecking the Wi-fi optimization, it was more consistent but still drops out frequently while at work. There is a known bug with the wifi driver that hasn't been addressed for years, but still trying to find the original articles describing the problems.
It seems you are having tons of issues, worse than most.
If you are having a problems suggested on this site, maybe this can help.
http://goo.gl/voSxF
Click to expand...
Click to collapse
the weird thing is, it just started happening about 2 weeks ago. It was perfectly fine up until then. Never had an issue with Wi-Fi. If this don't work i might try doing an entire wipe right back to stock and locking bootloader.

Need Help! WiFi is not working on my brand new Galaxy Note 2

Guys... Just Bought Samsung Galaxy Note 2 before 2 days ago.
when i try to connecting on wifi it is always showing "Obtain ip address" and never connected. If i put IP and DNS manually on wifi settings then it connected to wifi network but internet not working on nowhere in my note 2. browser and google play says no connection at all.
But My friend's Galaxy S3 is working properly on my home with both wifi connection.
My Note 2 android version is 4.1.2 Jelly Bean.
Please Help Me Guys

rptechworld said:
Guys... Just Bought Samsung Galaxy Note 2 before 2 days ago.
when i try to connecting on wifi it is always showing "Obtain ip address" and never connected. If i put IP and DNS manually on wifi settings then it connected to wifi network but internet not working on nowhere in my note 2. browser and google play says no connection at all.
But My friend's Galaxy S3 is working properly on my home with both wifi connection.
My Note 2 android version is 4.1.2 Jelly Bean.
Please Help Me Guys
Click to expand...
Click to collapse
Same here. Always worked fine before the firmware upgrade. I found his thread - http://forum.xda-developers.com/showthread.php?t=2078000 But am yet to try it. Just makes me wonder if the process would have any negative bearing on future updates but i guess i or we don't have much of a choice.

nascarlam said:
Same here. Always worked fine before the firmware upgrade. I found his thread - http://forum.xda-developers.com/showthread.php?t=2078000 But am yet to try it. Just makes me wonder if the process would have any negative bearing on future updates but i guess i or we don't have much of a choice.
Click to expand...
Click to collapse
I already done that http://forum.xda-developers.com/showthread.php?t=2078000
1. Rooted My note 2
2. replace wifi folder of version 4.1.1
3. restart mobile but wifi is break. it never on and if i try to on it 3-4 times mobile is restart automatically.
4. Finally restore old wifi folder and all normal back.
all working fine as previous but not get WiFi connectivity.

rptechworld said:
Guys... Just Bought Samsung Galaxy Note 2 before 2 days ago.
when i try to connecting on wifi it is always showing "Obtain ip address" and never connected. If i put IP and DNS manually on wifi settings then it connected to wifi network but internet not working on nowhere in my note 2. browser and google play says no connection at all.
But My friend's Galaxy S3 is working properly on my home with both wifi connection.
My Note 2 android version is 4.1.2 Jelly Bean.
Please Help Me Guys
Click to expand...
Click to collapse
Did you try using othwr wifi network and if yes I guess just return it back for a replacement
Sent from my GT-N7100 using xda app-developers app

koalauk said:
Did you try using othwr wifi network and if yes I guess just return it back for a replacement
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
Yes, I try it on my friends home wifi but still same problem. it continuous showing "Obtaining IP Address" but never connect.
I went service center but there are working fine on their Static IP. So the problem is that my note 2 can't detect ip automatically.
Any Help?

I'm experiencing the same problem after recieving an OTA firmware update some 4 days ago. I connected via Kies, and for some reason it found another FW update not available through OTA. This fixed the issue for me until yesterday when the phone crashed for the 2nd or 3rd time, something it's never done until i recieved these updates. Now the issue is back as described by users above.
1. "Obtaning IP address..." for about 1 minute
2. "Network disabled. Poor connection"
Just to eliminate some sources of error:
I'm sitting 5 meters away from my router, no walls in between.
All other devices (2nd phone, laptops and tablets) are working fine on this network.
I've tried connecting to other networks with my Note 2, with the same problem.
Tried to do a restart w/ battery pull.
Any input or leads is welcomed with open arms.
Edit: For some magical reason, the phone connected to my network just now. After turning wifi off/on, the problem returns.

If it is brand new and un rooted and all then return to service center.
Sent from my GT-N7100 using xda app-developers app

Guys I went Samsung Service Center Today with My Friend. Samsung guy check my note 2 and connected on their static ip wifi network and say me that the phone is working fine.
Then i asked my friend to on hotspot on his Galaxy S3 and then i try connect my note 2 on his s3 hotspot and same "Obtaining IP Address" problem. but the samsung guy's Galaxy note connected instantly on my friends s3 hotspot. now Finally Samsung guy understand what i want to say him.
He asked me to leave my note 2 for a day for checking if problem not solved then he will give me written permission to replace it.
Now waiting for tomorrow.

The static IP worked as a temporary fix for me, so this seems related to the DHCP protocol.
Anyway, I've had my Note 2 for some four months without any issues until now, and as the wifi problems surfaced immediately after an OTA firmware update, it shouldn't warrant a complete phone replacement imho... Fingers crossed that Samsung will take responsibility and release another FW update. I've got my phone set up just the way I like it and would hate to have to replace it.

terjeofnorway said:
The static IP worked as a temporary fix for me, so this seems related to the DHCP protocol.
Anyway, I've had my Note 2 for some four months without any issues until now, and as the wifi problems surfaced immediately after an OTA firmware update, it shouldn't warrant a complete phone replacement imho... Fingers crossed that Samsung will take responsibility and release another FW update. I've got my phone set up just the way I like it and would hate to have to replace it.
Click to expand...
Click to collapse
DId you try with DMB2 update?

[SOLVED!] Need Help! WiFi is not working on my brand new Galaxy Note 2
Hey Friends!
I Got Replaced my Samsung Galaxy Note 2 Yesterday By Samsung. :good:
My new Note 2 have not any problem with WiFi connectivity and never found problem with new Note 2 like "Obtaining IP Address" & "Network disabled. Poor connection"
So Friends If you have same problem then only stable solution is get Replace Your Note 2 From Samsung.

Help! Issue with Galaxy Gear

Posted on Gear forum, no response there.
My bluetooth connection has been driven me nuts.
The spontaneous disconnection happens a lot even with direct line of sight between tablet and watch, oh, I'm using note 10.1 P601 Latin America Edition, watch is Latin America too.
I couldn't sleep well last night because of disconnection and vibration it caused, and there's no way turn that vibration off.
After showing disconnected, the two device connect back on instantaneously. It will happen randomly around 10-90 minutes.
EDIT: I'm using latest software update right now for both device
Click to expand...
Click to collapse
Thanks!

gordonyz said:
Posted on Gear forum, no response there. Thanks!
Click to expand...
Click to collapse
I have a SM-P601 from LATAM and have used my Gear on it without any problems but I mostly use it with my N3. Make sure the latest version of Gear Manager is installed. There's also a new version of s/w for the Gear itself (MK7) that adds some functionality and may address some connectivity bugs. There have also been reports on both U.S. and international Note 10.1-14's of intermittent BT disconnects so it might not have anything to do with the Gear. There are threads discussing that issue in the general forum.

It's bluetooth disconnect from tablet, drops same time watch and my car bluetooth. I already have latest firmware for my P601. Hoping only that samsung could fix this bluetooth issue.

Wifi and Bluetooth stop Working constantly

Hi,
I'm with the A50 for 3 weeks now. In the last couple of weeks I have a very annoying problem. A few times a day (sometimes 5-6) the phone disconnects from the wifi network and turns off the Bluetooth with no apparent reason.
When this happens the Bluetooth is actually turned off (not just disconnects). When I try to reconnect to a wifi network, I cannot (no response from the phone, although it does recognize available networks) and also the Bluetooth cannot be turned on at all.
The only way out of this is to switch to flight mode and back. That resolves it and everything goes back to normal. Then it can happen again in a few minutes or a few hours.
Anyone have an idea what's going on before I throw this phone away?

I thought I'm the only one facing these issues (in my case its not as frequent but its there). I also noticed that when changing EAP settings in certain wifi coneections, the settings app just force closes. Contacted customer support and they recommended doing a factory reset!

There is a big problem on this part of the smartphone, I encounter a problem with bluetooth and the wifi tends to cut also by now, but it returns to normal without going through the airplane mode for me.
I do not know if it's a hardware or software problem, but I think I'll return the smartphone to Amazon and go back to my S7 Edge
shadow_khan said:
I thought I'm the only one facing these issues (in my case its not as frequent but its there). I also noticed that when changing EAP settings in certain wifi coneections, the settings app just force closes. Contacted customer support and they recommended doing a factory reset!
Click to expand...
Click to collapse
I did a factory reset, in my case, nothing changed, I just lost my time doing it yesterday

What firmware do you guys have?

zenat said:
There is a big problem on this part of the smartphone, I encounter a problem with bluetooth and the wifi tends to cut also by now, but it returns to normal without going through the airplane mode for me.
I do not know if it's a hardware or software problem, but I think I'll return the smartphone to Amazon and go back to my S7 Edge
I did a factory reset, in my case, nothing changed, I just lost my time doing it yesterday
Click to expand...
Click to collapse
Can also confirm. Finished a factory reset now and I still face the same issue with the FC on changing EAP setings. Wifi keeps dropping. Unfortunately mine was bought from mediamarkt about 8 weeks ago. I'll contact the customer support again and see what they recommend.

I have similar problems with BT connected Samsung Galaxy Watch.
What I observed: when I switch off 2.4 wifi ( or "forget" all known networks so the phone does not connect ) then BT connection with watch works perfectly.
Strangely enough when I am connected to 5 GHz wifi BT seems to work OK.
So in my case: BT and 2.4 GHz wifi running together causes problems
As I saw in May update Samsung declares fix for wifi performance.
Let's see what happens

I don't know about bluetooth issue but I do have wifi issue, sometimes the wifi is not working so I have to turn it off and on again to fix it

pabgar said:
I have similar problems with BT connected Samsung Galaxy Watch.
What I observed: when I switch off 2.4 wifi ( or "forget" all known networks so the phone does not connect ) then BT connection with watch works perfectly.
Strangely enough when I am connected to 5 GHz wifi BT seems to work OK.
So in my case: BT and 2.4 GHz wifi running together causes problems
As I saw in May update Samsung declares fix for wifi performance.
Let's see what happens
Click to expand...
Click to collapse
Now that you say it, it's true that I had no disconnection when I was in wifi 5ghz !
Faust777 said:
What firmware do you guys have?
Click to expand...
Click to collapse
Last firmware for me

Faust777 said:
What firmware do you guys have?
Click to expand...
Click to collapse
I'm with the April security patch. Still haven't received the May update
shadow_khan said:
Can also confirm. Finished a factory reset now and I still face the same issue with the FC on changing EAP setings. Wifi keeps dropping. Unfortunately mine was bought from mediamarkt about 8 weeks ago. I'll contact the customer support again and see what they recommend.
Click to expand...
Click to collapse
If you could update me on what they say, that would be amazing. I'm in Berlin as well.

sagybp said:
If you could update me on what they say, that would be amazing. I'm in Berlin as well.
Click to expand...
Click to collapse
Here is what they said:
Dear Mr. [redacted],
We kindly ask you to carry out the following steps:
Please touch samsung members for about 1 second and then tap on "Error reports". Now select "Network / Connections" and activate "Send system log".
please describe your request again. This data will then be sent directly to the responsible department.
Kind Regards
[redacted]
tbh, this seems like they want to bs their way out of solving my issue. I have no expectation of hearing back from them.

zenat said:
Now that you say it, it's true that I had no disconnection when I was in wifi 5ghz !
Last firmware for me
Click to expand...
Click to collapse
So the may update right?
sagybp said:
I'm with the April security patch. Still haven't received the May update
Click to expand...
Click to collapse
Same with me still april update, samsung in my country is very slow at distribute update.

shadow_khan said:
Here is what they said:
Dear Mr. [redacted],
We kindly ask you to carry out the following steps:
Please touch samsung members for about 1 second and then tap on "Error reports". Now select "Network / Connections" and activate "Send system log".
please describe your request again. This data will then be sent directly to the responsible department.
Kind Regards
[redacted]
tbh, this seems like they want to bs their way out of solving my issue. I have no expectation of hearing back from them.
Click to expand...
Click to collapse
I just spoke to Samsung Germany today and they told me they are aware of this problem and it should be fixed with the next update and that they are working hard to get out until the end of the month. At least some hope.

I thought I was going crazy with my bluetooth problems... Glad to know samsung knows about this... thanks for info all

shadow_khan said:
Here is what they said:
Dear Mr. [redacted],
We kindly ask you to carry out the following steps:
Please touch samsung members for about 1 second and then tap on "Error reports". Now select "Network / Connections" and activate "Send system log".
please describe your request again. This data will then be sent directly to the responsible department.
Kind Regards
[redacted]
tbh, this seems like they want to bs their way out of solving my issue. I have no expectation of hearing back from them.
Click to expand...
Click to collapse
carlasan said:
I thought I was going crazy with my bluetooth problems... Glad to know samsung knows about this... thanks for info all
Click to expand...
Click to collapse
Wanted everyone to know I received the May update this morning which stated "Wifi stability fixes".
I updated it 5 hours ago. So far, no disconnections. Let's see.

sagybp said:
Wanted everyone to know I received the May update this morning which stated "Wifi stability fixes".
I updated it 5 hours ago. So far, no disconnections. Let's see.
Click to expand...
Click to collapse
Great news. Is bluetooth fixed also ? ( mean BT disconnections when wifi 2,4 connected )

sagybp said:
Wanted everyone to know I received the May update this morning which stated "Wifi stability fixes".
I updated it 5 hours ago. So far, no disconnections. Let's see.
Click to expand...
Click to collapse
Also got the May patch. Unfortunately changing EAP method in wifi still force closes the settings app.

A505G (americas) version still not yet updated

pabgar said:
Great news. Is bluetooth fixed also ? ( mean BT disconnections when wifi 2,4 connected )
Click to expand...
Click to collapse
All my problems were fixed after that update. I have no disconnections for a few days now!

I confirm. After May update all BT and WiFi problems are gone.

Strange issue with Wi-FI and Night Mode
Hi there,
I'm on the latest May '19 update with my A50 (A505FN) and just discovered a very strange issue: when Night Mode is enabled, I can't change advanced settings on WiFi connection, or the Settings app will crash as soon as I tap on the "IP Type" or "Proxy" option.
If I disable Night mode, then everything works fine and I can successfully change the above settings.
Think this is a SW bug...
Did someone experience the same behaviour?
Thanks in advance,
Max - Italy

Question Wifi drops (connected without internet)

Hi all,
Been playing with the z4 a few days. It's brilliant if it weren't for a wifi issue. A few times per day it shows the wifi symbol with a ! i.e connected without internet. It's the only product connected to my home wifi that has issues when it happens.
Any suggestions what can be done?
Thanks,
Mark

I don't have this device, but I have suggestions.
- Try to reconcile the protocols on the router and the phone.
- Turn off battery saving features when wifi is not in use.
- Set up a wifi connection on your phone, a persistent connection, or something similar.

If you used SmartSwitch, you may want to reset all the network settings.

Outbreak444 said:
If you used SmartSwitch, you may want to reset all the network settings.
Click to expand...
Click to collapse
I'll remove all the Bluetooth and wifi settings and start fresh. Can't imagine it's hardware related. Thanks

markb74 said:
I'll remove all the Bluetooth and wifi settings and start fresh. Can't imagine it's hardware related. Thanks
Click to expand...
Click to collapse
Did this work as mine is the same as soon as I go upstairs just this device loses connection

mattcall said:
Did this work as mine is the same as soon as I go upstairs just this device loses connection
Click to expand...
Click to collapse
Hi mattcall,
Yes it did. Pressed forget the network, restarted the phone and added again. Hope it works for you too.

markb74 said:
Hi mattcall,
Yes it did. Pressed forget the network, restarted the phone and added again.
Click to expand...
Click to collapse
mattcall said:
Did this work as mine is the same as soon as I go upstairs just this device loses connection
Click to expand...
Click to collapse
Well apparently it didn't help. Had same issue this morning twice, just sitting on the couch. So not related to switching between wifi repeaters.
Maybe we'll have to wait for first firmware update, since I'm on a pre-release with security patch July.

I'm having the same problem with an Asus router. It's been very intermittent for the few hours I've been using it.

bigfire said:
I'm having the same problem with an Asus router. It's been very intermittent for the few hours I've been using it.
Click to expand...
Click to collapse
And I was sitting 15 feet from my router not moving.

bigfire said:
And I was sitting 15 feet from my router not moving.
Click to expand...
Click to collapse
As soon as I go in my bathroom the fold. Loses connection but my s21 ultra is fine also Samsung internet on Samsung website keep freezing page unresponsive

I noticed that when this happens the "up" arrow is constantly on, while in normal conditions both would go on and off when sending and receiving. Maybe router related, but all the other Samsung products in my household don't have that issue and there's plenty.