S6 wifi issues - Galaxy S6 Q&A, Help & Troubleshooting

Hello everyone!
I've recently bought my s6 after killing my old s5 with salt water on a Mediterranean trip (after taking it apart I found out the previous owner had the screen replaced, probably didn't do a very good job of putting the seals back together), and I was hoping that the notifications issue was gone on the s6. Here's what happens: when I get up in the morning I usually start my phone routine by reading the news, maybe watching some videos on YouTube, check on my games, and so on. The WiFi is on all the time when I'm at home. The first time I unlock the screen I only see the default email app notifications, 2 or 3 new emails. Once the screen is unlocked, other notifications show up, like the Gmail app, WhatsApp, tapatalk, and so on. It does this 80 to 90% of the time, maybe once or twice a month I see all my notifications the first time I press the power button to unlock my screen. Going on, half an hour to one hour after reading my newspapers feeds and watching videos, playing my games, there is a noticeable lag whenever I try opening a new Internet tab, or a new YouTube video, or anything that requires the Internet connection. After this lagginess starts, usually within a few minutes my phone behaves like it's not connected to the Internet anymore. The WiFi signal is strong, it stays connected to the router, but I can't use the Internet, it just shows that it's loading whatever it is I've asked it to load at the moment (YouTube video, internet tabs and so on) and remains like that until I disconnect from the WiFi and reconnect. I have to do that for the Internet connection to work again. I've noticed that while on mobile data it doesn't exhibit this issue as much, maybe just the occasional WhatsApp notifications halt, other than that it seems to be working ok.
Before you answer you must know that I'm not using the"do not disturb" mode at all, the router is brand new and it gets a reset every few days . I experience this issue both at my place and at my girlfriend's place, we have different router manufacturers.
I used to get the same problem with the old s5 as well. At first I thought the router was the issue, got a new one, the issue is still there. I also did the wipe cache partition, factory settings reset, different Google account,all with the same end result.
Sorry for the layman terms, I was trying to present the facts as I experience them in hope that the more technologicaly educated of you will know where or why the issue happens.
If you have any ideas or advice that I haven't tried, please share and thank you for reading.
Sent from my SM-G920F using Tapatalk

Related

wifi problems

hello guys,
i may have a problem with my wifi connection.
i bought two days ago the phone and yesterday i was playing with it in my house. i have some kind of problem when i am connected to my rooter.
when i connected my phone, i started viewing some sites and watching youtube videos.
suddenly i had this problem:
at the browser when i clicked a site, it started load it but never ended, just showing a white page. if i pressed stop and reload then the site was loaded ok.
this happened all the time.
when i returned to youtube the videos started and played for 10-20 seconds and then were freezed because the phone could not get the rest video.
at the same time i had internet access from my rooter as i could navigate at sites from my tablet.
if i close and open my wifi on phone then the connection was ok but after a while (10 mins) this strange behavior started again .
has anyone ever had the same problem;
thanks you
(PS sorry for my english)
What ROM are you using, and did you try to reset the phone and wipe cache/dalvik?
Sent from my HTC One XL using xda app-developers app
the phone is new (2 days old) and its stock
Have you tried simply power-cycling the router? Should be one of the first things you do, anytime you have a WiFi problem, as this will clear it up many times. I think I've seen this help even in cases where other devices work on the WiFi network properly.
yeap, i restarted both router and the phone
i have changed all the settings on the wifi-settings but did not see any progress.
From htc support told me to worj the phone in safe mode, but i have to wait until i return home
besides this problem, i cant connect and the router at my office (i had the same problem with mt s2 after an update, but 1-2 months later sammy rolloed out an update and the problem fixed)
Is security enabled on your WiFi network, and if so, what type (WEP, WPA, WPA2, etc.). You might try switching the encryption type (although WEP is not recommended, as its not very secure). I've seen cases where this has helped various connection problems.
I have had this problem with a lot of phones that friends and family bring by. 90% of the time the problem is a minor setting on the router. Some Android phones don't like AES encryption. If your encryption settings on your router are set to "AES" or "TKIP and AES" try changing it to just TKIP. You should see improvement with your connection.
You may have to change the security settings on other devices that are connected to that router as well to refelect the change.
hey guys,
yesterday evening, when i returned home i checked my router if it was able to change the frequency from 2.4GHz to 5GHz but i could not as at the channel it did not had choises for 5GHz.
i did not change the encryption type.
i restarted the phone, and entered in safe mode. after 10 mins the problem occurred again, i removed chrome, and suddenly the phone started working fine for until 1 hour and so i figured out that the problem was the app chrome, but i left the phone in safe mode and went to bed.
next morning (today) i started watch sites and after 5 minutes the problem occurred again. (i did not turn off the phone from the previous night, still worked in safe mode)
is there any possibility the problem to caused when the phone is in standby? although i have the wifi activation in option always

Bluetooth causing extremely slow wifi

So I've had my m8 since launch, about May of 2014. I've never once had a problem with my wifi, until last week. All of a sudden, I noticed all of my wifi connections (home, work, etc) are all extremely slow. Speed tests are barely getting 1mbps down or up, and the test itself is very erratic, bobbing up and down the whole time. All my other devices are fine, and nothing with any of my wifi connections has changed. I uninstalled about 3 apps that I had installed within the last month, with no change. Verizon sent me a replacement m8, and I got it yesterday, loaded up all my stuff, and low and behold, still slow wifi.
After talking with numerous Verizon techs, they can't solve it, even after multiple factory resets. However, this morning I saw a post while googling it, not an m8 but still android. They said that if Bluetooth is on, but not connected to a device, it could cause issues. So I turned my bluetooth off, and speeds were perfect, getting exactly what my internet connection is. Turned it back on, and back to 1mbps.
So one, why is this happening? I've read that the bluetooth and wifi antennas are the same, and that could cause interference, but it should not be this bad. Second, why did this just now all of a sudden start? I didn't usually leave bluetooth on, but I got a new car about 3 months ago, and decided to leave it on to automatically connect when I'm driving. But it was fine until last week, why the change?
Have you discovered anything new? I've had my Verizon m8 since April 2014 and have always left bluetooth on for my fitbit to sync. I only recently started having problems and can't identify any recent update that happened this month that would cause it. When bluetooth is on and a device is connected my wifi performance is very slow - 100+ ms ping, 1-2Mbps up/down doing a speedtest. Turn bluetooth off and speed test again then wifi performance jumps to 20Mbps up/down with 12ms ping times to the same speedtest server.
I have factory reset my phone 3 times, changed wifi channels, tried 2 different routers and 1 access point. None of the wifi changes affected speeds until bluetooth was turned off. It seems to be a little quicker 3-5 Mbps with bluetooth on and no devices paired but still that's not acceptable.
sitlet said:
So I've had my m8 since launch, about May of 2014. I've never once had a problem with my wifi, until last week. All of a sudden, I noticed all of my wifi connections (home, work, etc) are all extremely slow. Speed tests are barely getting 1mbps down or up, and the test itself is very erratic, bobbing up and down the whole time. All my other devices are fine, and nothing with any of my wifi connections has changed. I uninstalled about 3 apps that I had installed within the last month, with no change. Verizon sent me a replacement m8, and I got it yesterday, loaded up all my stuff, and low and behold, still slow wifi.
After talking with numerous Verizon techs, they can't solve it, even after multiple factory resets. However, this morning I saw a post while googling it, not an m8 but still android. They said that if Bluetooth is on, but not connected to a device, it could cause issues. So I turned my bluetooth off, and speeds were perfect, getting exactly what my internet connection is. Turned it back on, and back to 1mbps.
So one, why is this happening? I've read that the bluetooth and wifi antennas are the same, and that could cause interference, but it should not be this bad. Second, why did this just now all of a sudden start? I didn't usually leave bluetooth on, but I got a new car about 3 months ago, and decided to leave it on to automatically connect when I'm driving. But it was fine until last week, why the change?
Click to expand...
Click to collapse
I too have had bluetooth on for months to be able to connect to my car, never had a problem until about a month or so ago. I did two factory resets, and everything seemed to work fine, but after a day or so, when all my apps were back on the phone, it would start up again. I have a hard time believing a specific app is doing this, unless it was one of the HTC Home updates or something.
Verizon sent me a replacement M8, I got all my apps on it, and the same thing, after a day or so it's super slow with Bluetooth on, horrible ping and less than 2mbps down and up.
So then I contacted HTC directly, did all their troubleshooting, factory reset, and it's still there. They sent me a replacement as well. I turned it on, but did not put my sim into it. I spent 2 days with it, and only downloaded the Speedtest app, nothing else. Speeds are fine with bluetooth on. I then downloaded the rest of my apps (I actually do have quite a few apps, so if it's one of them it will be a pain to figure out which one). It's been two days now and speeds are still good with bluetooth on. Later today I'm going to offically move over to this phone and put my sim in it.
It's just really frustrating to keep turning bluetooth off and on again, and there should be no reason for this to be happening out of the blue all of a sudden.
sitlet said:
I too have had bluetooth on for months to be able to connect to my car, never had a problem until about a month or so ago. I did two factory resets, and everything seemed to work fine, but after a day or so, when all my apps were back on the phone, it would start up again. I have a hard time believing a specific app is doing this, unless it was one of the HTC Home updates or something.
Verizon sent me a replacement M8, I got all my apps on it, and the same thing, after a day or so it's super slow with Bluetooth on, horrible ping and less than 2mbps down and up.
So then I contacted HTC directly, did all their troubleshooting, factory reset, and it's still there. They sent me a replacement as well. I turned it on, but did not put my sim into it. I spent 2 days with it, and only downloaded the Speedtest app, nothing else. Speeds are fine with bluetooth on. I then downloaded the rest of my apps (I actually do have quite a few apps, so if it's one of them it will be a pain to figure out which one). It's been two days now and speeds are still good with bluetooth on. Later today I'm going to offically move over to this phone and put my sim in it.
It's just really frustrating to keep turning bluetooth off and on again, and there should be no reason for this to be happening out of the blue all of a sudden.
Click to expand...
Click to collapse
Strange issue, but from how you described it, it must be a 3rd party application. What I would do in this situation, is do the factory reset, and download 5 apps at a time. Until you narrow it down to the 5 apps that are causing the issue, then you can narrow it down much easier out of the 5 applications. A pain, yes. but once you figure out the app that's causing the issue, you may decide you don't need it, or you only use it once in awhile and can remove it, until you need it, or possibly download an app ops application from the Playstore and remove the Bluetooth permissions and see if that fixes it.
Best of luck.
Seems to help...
I just tried the solution offered in another forum (xda won't let me post the link so I'll copy and paste the information here:
Open page with the available "Wi-Fi" networks (Settings, WI-FI)
Tap on the "3 dots" in the upper right corner
"Wi-Fi Direct"
Tap on the "3 dots" in the upper right corner
"Rename device"
Replace "Android_ed2c" with "HTC One" (or whatever you want) and hit "OK"
Before doing this I had a 300ms ping when Bluetooth is on, and very low bandwidth. Now with Bluetooth on the wifi ping is around 50ms (normal for my home internet) and the bandwidth is back to normal. Time will tell if it sticks, but so far so good!
So I had been running all my apps on my replacement phone for about a week now, and have had no problems. The other day I officially swapped my sim card into this new phone, and for two days now, it's been fine. Bluetooth and wifi are on constantly, and I see no issues with bandwidth. So who knows why the last two devices had a problem, but for now it seems to be fixed.
Having the same issue, originally posted on reddit and then found this thread: https://www.reddit.com/r/techsupport/comments/3kv6z6/wifi_issues_with_multiple_phones/
Turned off bluetooth and it's fine... Will be experimenting with my gf's m8 this weekend.
MJB_One said:
I just tried the solution offered in another forum (xda won't let me post the link so I'll copy and paste the information here:
Open page with the available "Wi-Fi" networks (Settings, WI-FI)
Tap on the "3 dots" in the upper right corner
"Wi-Fi Direct"
Tap on the "3 dots" in the upper right corner
"Rename device"
Replace "Android_ed2c" with "HTC One" (or whatever you want) and hit "OK"
Before doing this I had a 300ms ping when Bluetooth is on, and very low bandwidth. Now with Bluetooth on the wifi ping is around 50ms (normal for my home internet) and the bandwidth is back to normal. Time will tell if it sticks, but so far so good!
Click to expand...
Click to collapse
Thanks for the post. Tried this, but no luck. Hopefully it can work for others
Sent from my HTC6525LVW using Tapatalk
Multiple threads discussing this issue...
http://forums.androidcentral.com/htc-one-m8/565952-app-causing-slow-wifi.html | 2015-AUG-12
http://forum.xda-developers.com/ver...luetooth-causing-extremely-slow-wifi-t3177402 | 2015-AUG-12
https://www.reddit.com/r/htcone/comments/3kr2sb/why_did_my_htc_one_m8_wifi_get_so_slow/ | 2015-SEP-13
https://www.reddit.com/r/techsupport/comments/3kv6z6/wifi_issues_with_multiple_phones/ | 2015-SEP-13
https://www.reddit.com/r/htcone/comments/3n8xu1/problems_with_wifi_connection_unable_to_find_help/ | 2015-OCT-02
https://www.reddit.com/r/htcone/comments/3n663y/m8_wireless_downloads_falling_to_the_center_of/ | 2015-OCT-01
Same HTC M8 issue - very slow WiFi when Bluetooth is running
Same problem on an HTC M8... speedof_dot_me speed test shows 96 ms latency with D/L at 0.07 mbps (really!) on an 11 mbps router. Turned off Bluetooth, and voilla! Latency dropped by 85% and WiFi speeds increased by a factor of 60! I suspect an HTC issue since an August or September update... since this wasn't occurring prior to August.
Verizon sent me a replacement M8 that was on 4.x.x android. I updated via on-air update (not rooted) to Lollipop and installed all my apps. Everything was fine. That night, it did a security update and, since then, my wifi+bluetooth were horked when turned on together.
Do, I did a factory reset (which doesn't undo the updates), but since doing the factory reset and installing just the basic Play-store updates 24 hours ago, the problem is not back.
I'm going to slowly add back my normal apps this time.
Solved on one plus one
Hello, i had since two weeks the similar issue. when bluetooth is switchef on (unconnected), wifi is very slow. in the past this different, so no issue with hardware and frequencies. Finally, I found out that it was linked to an App that accesses Bluetooth.
In my case it was the App Accu-Chek, I read in a big forum that it was linked to a Garmin app.
Uninstalling the App solved the issue.
My wife has a similar issue on Stock Galaxy S4 mini with that App.
This is definitely app-related. I tried force closing out of a bunch of apps that weren't related to the video I was playing and it seemed to fix the bandwidth issue with bluetooth enabled. Guess I'll need to experiment with closing certain apps until I find the culprit.
I was having this same problem. It looks like the RetailMeNot App was the culprit for me.
clusterchuck said:
I was having this same problem. It looks like the RetailMeNot App was the culprit for me.
Click to expand...
Click to collapse
You sir deserve a cookie. Thanks for pointing out the worst app of 2015.
Solved on my Phone!
I used to have the same problem. I am having a Sony Xperia Z1 Compact and a Smartband Talk. At the beginning everything was fine but after sometime (strongly caused by a software related issue) I begin to face the same problem. While bluetooth is on WiFi bandwith dropped to a very little amount (around 0,02- 0,01 Mbits/s). Then I read somewhere, about how to verify whether it is a software or hardware issue via checking it in the Safe Mode. So I unpaired by smartband talk and uninstalled the smartband talk software (smartband talk requires a bluetooth connection for functioning). Then restarted my phone in to safe mode by tapping and holding the power off on the shutdown menu. I downloaded the smartband talk software and turned on my bluetooth and paired my smartband talk again. Then restarted my phone in to normal mode. And voila, problem solved.
It is not a guaranteed method but worth to try.
Wish you good luck.

[6039s] Google Play (I think) wakelock issue

I can't figure this out to save my life. 6039s Android 6. No root. No special mods. Nothing. Bone stock.
In the middle of the day today I suddenly started getting a horrendous wakelock. I thought it was a Google Play issue but it turned out that it's some kind of mobile data issue.
My LTE connection isn't working right. It's slow for some apps and non existent for others.
For instance my sports score app loads at 2G speeds. My web browser seems to work okay. But my t mobile tuesday's app gives me a big warning that I'm not connected to the internet at all. And the Google Play app gives me all kinds of warning that I need to have background data enabled to use Play, but background data IS enabled.
Making matters worse, when this issue is happening my phone enters a miserable and unstoppable wake lock that drains the battery so fast it hard to even charge it. And it saps up the system resources to heavily that the phone slows down to a crawl and can't be used for anything else. Not to mention the phone gets insanely hot from the excess processing. Could a tower issue that's causing a connection problem cause such a wakelock?
I tried doing a reset of the radio connections in settings, but I don't think it actually did anything because all my settings and connections were still there. Still had my wifi password, BT connections, etc.
I tried wiping cache in recovery but it didn't work. Says it did it. But on reboot I didn't get the "app 1 of 82 is updating". So I don't think it actually did that either.
I cannot figure this out to save my life.
I thought maybe it was a tower issue. But my wife has the exact same phone and it's working fine. I called T Mobile and they said they are having a tower problem near my house, but still...wife's phone is fine. And I've seen this problem now in 3 different locations across about a 5-6 mile range. So I have to have been on more than 1 tower in that time.
When I turn on wifi and have a wifi connection the problem goes away entirely. That's telling me that the problem is the system getting upset that it doesn't have a solid internet connection. Changing the connection to 3G or 2G does not solve the issue.
The problem lasted the whole second half of yesterday, was fine overnight while I left wifi on, was fine on day 2 when I was back to 4G networks, and then suddenly is back again.
Anyone got any ideas or suggestions?
Is there some server android is trying to stay in constant contact with that I can block the connection to? Perhaps limit background data to something? I can't figure out what.
This update was irrelevant. Turned out to be a red herring. Still having the problem.
Nevermind this update. STill having the problem
I give up. I'm about to throw the phone against a wall to smash it. The system has become totally loused up. Whenever it goes into these goofy wakelock states the system is so overtaxed that everything takes forever to process. Nothing solves it.
And its' getting worse. Now I have oddly limited connectivity.
T Mobile's tech support was useless. They had me thinking it was a tower issue. That was 3 days ago. Now suddenly they have no records of a tower issue in my area over the last week.
I can make voice calls. But I cant' send text messages. I can use my web browser to search the internet, but not SOME apps that need data like a weather app or Google Play. Other apps work fine to pull data.
Yet it says I have an LTE connection the whole time.
This is the single weirdest issue I've ever seen on Android.
What in the hell could have just jumped in out of nowhere and started causing these issues?

Android 10 - wifi sleeping while screen locked

Hi guys!
I did a lot of googling and searching through XDA, but never found a solution for my problem, so I might as well try it here.
Recently I updated my Sony Xperia X Compact to AOSP 10. Now when I am connected to wifi (and it does NOT matter whether it is 2.4/5GHz or IPv4/IPv6, I tried everything) and my screen is locked, my system seems to put the wifi connection into some kind of battery saving mode. Notifications then will hardly come through. You can also see this in WhatsApp Web - every two minutes or so, "Phone not connected" will show up, and messages take up to 2 or 3 mins to get delivered. Then I can use Whatsapp Web normally for 30 secs, after which my phone seems to disconnect again. If I unlock my screen, WhatsApp Web will immediately (!) start working normally again, also missing notifications (e.g. Signal) will then come through.
While of course this might be a ROM bug, I am at least 100% sure it IS ROM-related, as I used exactly the same phone with exactly the same router without any problems while on Android 9 LineageOS.
Another interesting thing - if I charge my phone, during charging WhatsApp Web works completely without problems. The moment i UNPLUG the phone, wifi gets somewhat throttled agian.
Does anybody know a working solution for this? I do not have the option "Disable wifi sleep" or something similar - i believe Google has dropped this option somewhere around Pie.
Thanks in advance!
Spaceoid said:
Hi guys!
I did a lot of googling and searching through XDA, but never found a solution for my problem, so I might as well try it here.
Recently I updated my Sony Xperia X Compact to AOSP 10. Now when I am connected to wifi (and it does NOT matter whether it is 2.4/5GHz or IPv4/IPv6, I tried everything) and my screen is locked, my system seems to put the wifi connection into some kind of battery saving mode. Notifications then will hardly come through. You can also see this in WhatsApp Web - every two minutes or so, "Phone not connected" will show up, and messages take up to 2 or 3 mins to get delivered. Then I can use Whatsapp Web normally for 30 secs, after which my phone seems to disconnect again. If I unlock my screen, WhatsApp Web will immediately (!) start working normally again, also missing notifications (e.g. Signal) will then come through.
While of course this might be a ROM bug, I am at least 100% sure it IS ROM-related, as I used exactly the same phone with exactly the same router without any problems while on Android 9 LineageOS.
Another interesting thing - if I charge my phone, during charging WhatsApp Web works completely without problems. The moment i UNPLUG the phone, wifi gets somewhat throttled agian.
Does anybody know a working solution for this? I do not have the option "Disable wifi sleep" or something similar - i believe Google has dropped this option somewhere around Pie.
Thanks in advance!
Click to expand...
Click to collapse
AFAIK there are kind of wifi energy saving options on some devices. But IDK if you can enable or disable wifi when phone is locked

Phone's wifi suddenly stopped working

Hi folks! I have a Samsung galaxy s10e that's given me almost no trouble up until a day or two ago. Anything internet-related on my phone is suddenly working very slowly, if at all. Google is hit-or-miss and some of my phone games that require internet connection are almost unplayable now. It's not having trouble connecting, it just sucks even when showing full bars https://nox.tips/ https://xender.vip/ .
It's not the wifi, because all my other devices and friend's devices have no issues at my place and the problem persists whether I'm at home, work, or out and about. I've tried restarting the phone, resetting the network settings, phone is fully updated from what I can see, and I don't have tons of apps open. This came on very suddenly (in the middle of playing a video, no less) and I'm not sure where to go from here. Anyone have any insight or advice?

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