[Q] Wifi connection issue - Galaxy S 5 Q&A, Help & Troubleshooting

I have a Galaxy S5 Running Stock Android 5.0 Lollipop, sometimes I came home and found out I don't have wi-fi turned on, I went and turn on Wi-Fi, but the connection no longer works. It will work after I reboot, anyone experience this?

Have you got Smart Network Switch enabled in WiFi settings?
It causes problems for almost everyone, disable it and see if that helps

Mine is not enabled. I will try enabling it to see if it makes a difference. thanks.

Related

Wifi and GoogleServices major problem

Hi all!
I have an international version of the S3 with a weird problem.
When I have Wifi connected my phone can't sign in to Google talk and wont receive notifications. I can browse and download stuff though.
If i switch to 3G all is well and working. I have tested on different networks and I have a galaxy tab 10.1 connected to the same wifi without problems so it's no ports in the firewall that's causing it.
If I restart the phone it works for about a day then it fails again and I have to restart the phone to get G-talk over wifi.
I have tried setting the phone a static IP, switched "Keep wifi on during sleep" on and off, tried the trick with power saving in debug menu but nothing helps.
Has anyone experienced the same and can someone maybe suggest a fix?
Best regards
Erik

[Q] Wifi and Data Network Problem

Hi all,
I've been having inconsistent Wifi and mobile data network connection since the upgrade to Kitkat. I'm on stock Kitkat 4.4.2 (GT-I9505).
For some weird reason, from time to time (say after a week of use), my S4 connection to Wifi AND 3G/LTE just doesn't work. Disabling Wifi to allow it to go onto the network, and vise versa does nothing. Setting the phone to airplane mode and then disabling airplane also did not work.
Data just isn't going through.
The only solution that works is if I restart the phone
Anybody else had this problem? Any solution?
Thanks in advance.

Lillipop Wifi Issue (connect and disconnect between 4g and WiFi))

Hi,
I have the strangest behavior with my wifi, the phone keeps connecting and disconnecting between 4G and WiFi every few seconds when i'm at home. This drains my battery in couple of hours and I can't do anything unless i turn off WiFi. I have smooth transition between 4G and Wifi enabled in settings (i've tried disabling it, all it did was to speed up connect and disconnect between 4G and wifi) Anyone else experiencing this strange behaviour with WiFi and 4g?
I have the same behavior. You need to disable "Smart network switch" under the advanced Wi-Fi settings. I have not found a fix that will allow leaving this feature enabled.
I disabled the "smart network switch" and my phone still refuses to connect to known networks that are well within signal range. It may be staying connected better once connected but I have my wifi sleep with the screen so when I wake it up, the wifi should re-connect. Not working well at all. This 5.0 update sucks, you'd think that since Verizon takes forever to get updates to flagship phones that at least they'd be well tested and stable, NOT!

Wifi not working randomly

Hi,
I have a problem that my WiFi network disconnects and disappear from the list. Even if I search for network it will not show up.
It looks like a lot of the other WiFi networks around me is also missing when this is happening.
It will suddenly come back again and work as it should for several hours.
I have i locked to 2,4GHz, WiFi always on, scanning is on.
Had the same problem when I used Auto 2,4GHz/5GHz.
All other devices is working as they should. Have also reset the wireless router. (Netgear X4 R7500)
I have the same problem. When I turn the wifi off, and the back on again it discovers my router and connects.
Does anybody have a fix for this?
Same problem here. My 2,4ghz network sometimes just vanishes and shows up after a couple of minutes. And it just won't connect at all with my 5ghz network. My router is a D-link dir 868l. I'm on the latest firmware. My other devices all connect just fine, except for my 6p.
Updated to 6.0.1 and I have still problems. When I come back home, I need to turn off and on WiFi to reconnect. Wifi have not dropped since i updated to 6.0.1 yesterday.
Just curious
Who is your service provider? My girls 5x is connected to Sprint and she has no problems on my network. I have Tmobile on my 6p and it keeps dropping the wifi. Maybe its a Tmobile thing?
reset network config
I had the same problem and try to go to airplane mode on and off then even forget network and add back on. Work for a second and disconnected. So far this way work. Try this.
Got to Setting > Backup & reset > Network Settings reset
Hopefully this will work for you guys too.
Good luck! :good:
My brother has a Nexus 6p and the WiFi doesn't switch on at all after he updated to 6.0.1. I reflashed factory image of 6.0.1 again and it didn't work. I then flashed 6.0 but it still doesn't switch on. Any help?
bump
Anyone have a solution to this problem? I still have this big active, and have been using mobile data since.

LG Leon Hotspot turning itself off

LG Leon - 3 Network - UK Stock ROM recently upgraded to Marshmallow Stock OTA Upgrade.
The "create wifi hotspot" feature was working fine for several months on Lolipop. Recently updated to Marshmallow and the hotspot feature now randomly switches itself off. The duration the hotspot will stay active seems completely random. Sometimes it'll work for minutes other times hours. The connection timeout is set to never. I've had the hotspot die while I was watching a Youtube video so it switches off while the connection is being used. Phone screen on or off seems to have no effect. The phone is fully charged/charging and has a decent 4G signal. The phone is not hot or overheating.
I generally activate the hotspot via the toggle in the pulldown menu. For clarity when I say the hotspot switches itself off the phones data connection remains active and connected. It's the wireless hotspot feature which just randomly turns itself off.
After a bit of googling it seems quite a few people have the same issue. It was suggested I clear the cache, wipe user data & disable the hotspot timeout. I have done all of this, but the problem persists. Has anyone else had a similar problem, either on this or other LG devices? Was there a workaround?
At this point I'd like to roll-back the update and continue using Lolipop. Is this possible?
Thanks guys.

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