Wifi problems - AT&T Samsung Galaxy S 5

Anyone had problems with wifi password not sticking I know how to fix it took me awhile but I figured it out

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Wi-Fi Disconnected~

Running CM3.6.5 and cannot get the wifi to work. When I turn it on after a few seconds it says "Disconnected" right underneath it.
On the wifi networks I try to connect to my home router but it doesn't do anything. the signal strength:excellent securitypen, i hit the connect button but nothing.
I've turned off and on the wifi with no luck. Been searching for help but can't find any. If this has happened to you and you've fixed it let me know how i can do this.
Thanks!~
Have you only had this problem on one network? At work, every few days I loose my connection to our Linksys. A coworker's iPhone also fails to connect, but another coworker's Dell laptop can connect fine. Watching logcat I can see it attempting to connect, then spitting out an authentication failure error.
Restarting the Linksys seems to solve the problem. Not sure what is special about the two phones that makes everything crap out.
the only wifi network i use is my home one right now. haven't thought about restarting it. gonna do it and hopefully that will be the fix i've overlooked ><
/slaps his forehead.....
restarted my router and that fixed the problem. for some reason i've never had to do this but now i know.
thanks for the post! wifi working now.
Glad that helped. I'm still a little stumped about why it's doing this, but it sounds like we have the same issue. Restarting the router is easy enough though.
Now at home, I have a Linksys running Tomato firmware, and it never boots either of the two G1s we have. So it's just the stock router firmware for me, and it only affects G1s and iPhones (or at least, it affects them and not a laptop with Intel wireless).
i am having the same issue. does anybody knows if its a rom problem? I am running cyanogen 4.3.1. in college, where my laptop can connect fine, the g1 can not, and has a very low signal level while laptop shows excellent.

Wifi Issue?

Hi all, happy Friday! I searched for my paticular issue but couldn't find anything. Just wondering if anyone else has experienced this issue or something similar. What happens is my revo isn't automatically reconnecting to wifi when i go out of range and then back in. I will notice it's using data (4G or 3G) and when i go to wifi settings the wifi network says disabled and i have to go to it and hit connect. What's more weird is it's doing this with the wifi at work but not at home. It's not an issue with the wifi at work though because other people here have androids, iphones and blackberrys and don't have the issue. The phone has done this since i got it. I've looked at the wifi sleep setting and made sure it is set to never to rule that out. I've done several powerdowns and battery pulls since i got it also. Anyhow just wondering if anyone has heard of this. Thank you and sorry for the length of my post.
That happens on my phone as well, but will reconnect to my home network after the screen is on for a few seconds
Sent from my VS910 4G using xda premium
(Not a very productive post incoming)
I don't have that issue but I always turn my wifi off when I'm not using it. Better battery life plus no issues
Yeeup, I've had that exact issue on this phone from day 1. Some may not consider it a big deal, but it's actually one of my biggest pet peeves about the phone. I was hoping the V6 software update back in August would contain a fix for it, but I didn't notice a change.
Haro912 said:
(Not a very productive post incoming)
I don't have that issue but I always turn my wifi off when I'm not using it. Better battery life plus no issues
Click to expand...
Click to collapse
While that's a valid workaround, and i'd love to do that, it's not an option for me. I have the lowest data plan you can have on a smartphone (2gb), so i have to be on wifi whenever it's available so as not to go over usage. What's odd though is the phone only seems to do this with the wireless at work. I even went somewhere this past weekend that i haven't been in a while and the phone remembered and connected right up to the wifi there. Other smartphones at work don't behave this way with the wireless at work though. I'll just have to live with it, i'm used to it now anyway. Just have to remember everytime or i'll be using up my precious data. I'm wondering if the update to gingerbread (if our revo ever get it) will do anything with this issue.
What type of security is implemented at your work? I know there is a very common problem with PEAP and MSCHAPV2 authentication and FROYO. I can connect, but as soon as I change to another antenna, I get disconnected. It is the only reason I know I want Gingerbread. It was supposed to be fixed in Gingerbread.
gigem01 said:
What type of security is implemented at your work? I know there is a very common problem with PEAP and MSCHAPV2 authentication and FROYO. I can connect, but as soon as I change to another antenna, I get disconnected. It is the only reason I know I want Gingerbread. It was supposed to be fixed in Gingerbread.
Click to expand...
Click to collapse
Good question gig, work has 2 networks. One uses PEAP and the other is for guest internet access, i have it on the guest. I gather from what you've said it wouldn't help any to try this issue on the main PEAP network.
I have an update on my issue. I was at lunch yesterday and trying to connect to the free wifi there and noticed that the wifi network at work that's been giving me problems was on the list of remembered networks twice! I have no clue how this happened (in troubleshooting i always hit forget). I didn't even know it was possible for any device to have duplicate entries of wifi networks. I deleted one of them and it seems to have worked (so far). Some other people replied saying they were having my issue too, so i wanted to update this thread in case it would fix their issue too.

Cont find known wifi connections

Hey,
Does anyone else have this?
I have a bunch of wifi connections my phone has been connected to before and has stored so it can connect to them automaticaly.
But for some reason every now and then is loses wifi connection and when i look in my list of wifi connections, it can find all connections accept the one that is known.
I thought at first it was my router but i noticed this happened also at my work and at friends houses.
The only way to get it working again is by restarting my phone.
This has happened to me the last couple of weeks, this is not something that happened from the start

Wifi on/off problem

I've been having an issue with the WiFi connection lately. I have it configured for always on if connected on suspension.
But in the last few days I've picked my phone after leaving it like an hour and it's on LTE and the WiFi turns on. The WiFi connection was always on because I was using it with no problems on a laptop.
Is someone having this problem? I've searched but the only post I find is someone having the opposite problem.
I'm running stock 5.1 no root.

WiFi Issues

Not exactly certain where to post this (as I am not altogether certain the cause) so if mods have a suggestion to move it let me know.
I have a rooted Tmobile S6 (not rhe edge) running Sick as Hell custom Rom version X w/ Unikernel v9.
Periodically my WiFi signal will display the ER041 - DNS (or less frequently the ER081) error which I believe is related specifically to WiFi calling.
My GF has the exact same phone and the same setup (I think she has WiFi calling enabled as well).
I have run some tests previously where I turned WiFi calling off and still had hiccups with the WiFi (both home and at work).
It seems that when I clear the cache and reboot the issue resolves itself but only short term before I have to do it again.
No one else in the house is having WiFi issues such as me and I cannot seem to figure out if there is a setting that is throwing things off or what.
Any help is greatly appreciated.
Mine does this too but it usually clears itself up within a minute or two.
OP, check your IP address to see if your phone is getting an IPv4 address. I don't know why, but my phone was having major issues with this. I still haven't figured out exactly what the issue was; I was on Sow Nice, flashing back to stock solved the problem. The phone was getting an ipv6 lease, just not ipv4, for no apparent reason.
If that doesn't help, I would advise setting network configuration manually. However if ipv4 isn't working, this may not solve the issue.
WiFi Issues
Alright gang I need some brainstorming...and curious if any other T-mobile Galaxy S6 users are experiencing this issue. I don't believe it is ROM related but thought I'd post the inquiry in here anyhow.
Specs:
T-Mobile Galaxy S6 (SM-G920T) rooted with Sick as Hell X and Unikernel v9.1.
Baseband: G920TUVS3DOJC
Issue:
WiFi is intermittent (both work and at home). WiFi will be running fine on this device and also on my Kindle Fire and at some point WiFi on my S6 will stop working. The WiFi icon will still appear and the up/down arrows will flash but I can't pull up Google search results, YouTube videos, etc.
I get a ER041 - DNS error which is related to wifi calling but I think this issue is in fact DNS related (I've googled and googled and am just not entirely certain, if it is DNS related, exactly how to change settings to thwart this issue going forward).
If I run a speedtest I will get a "Network Communication Issues" message. If I turn off WiFi and then turn it back on the connection is still broken.
HOWEVER, if I clear the cache and reboot the phone, it will connect to WiFi for a period of time until the connection gets broken once again.
My phone seems to be the only device experiencing this issue. I have booted into Safe Mode and the issue still occurs so it doesn't appear to be app related. The Smart Network switch has always been off as well so I know that isn't the culprit.
At work I'm not going to be able to check the router settings but obviously I can at home (at home 4 other users connect to WiFi no problem).
There has got to be some sort of tweak/button/setting that I'm just not catching that is causing this. It is irksome.
I recently did a factory reset but the issue is still persistent. Scanning the interwebs this seems to be a pretty common issue with the S6 and Lollipop.
Any ideas??
socal87 said:
OP, check your IP address to see if your phone is getting an IPv4 address. I don't know why, but my phone was having major issues with this. I still haven't figured out exactly what the issue was; I was on Sow Nice, flashing back to stock solved the problem. The phone was getting an ipv6 lease, just not ipv4, for no apparent reason.
If that doesn't help, I would advise setting network configuration manually. However if ipv4 isn't working, this may not solve the issue.
Click to expand...
Click to collapse
Ya lost me on the IPv4 ipv6 lease jargon.
WiFi issued are 99% kernel related
The Sickness said:
WiFi issued are 99% kernel related
Click to expand...
Click to collapse
Hmmm...well then, Twisted v7.1 has yet to settle in so I guess I can let it ride for a couple days and see how things go.
Thanks bud
cwhiatt said:
Hmmm...well then, Twisted v7.1 has yet to settle in so I guess I can let it ride for a couple days and see how things go.
Thanks bud
Click to expand...
Click to collapse
Keep in mind, the other kernels are international
source.
EDIT.... also uni kernel adds a default.prop in system that has ro.securestorage=false when it needs to be set to true for USA devices
I'd say at this time I can rule out the kernel (it's a been a few days now running Twisted v7.1). I honestly think it is a Samsung bug. Not just S6 users but Galaxy S7 users are now reporting the issue as well (there is a thread over at AndroidCentral).
Just like myself, those users are reporting that Smart Network switch and Blutetooth and the like are turned off/disabled and yet the problem persists.
I've had WiFi issues on an s6 edge. But I figured it out that if I'm near my microwave and it's on WiFi dies on the phone. Soon as the microwave goes off it works fine ?
ShinySide said:
I've had WiFi issues on an s6 edge. But I figured it out that if I'm near my microwave and it's on WiFi dies on the phone. Soon as the microwave goes off it works fine
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Huh. Not the case in my situation. I've got a microwave but it's in the basement and rarely used.

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