[SOLVED] WiFi connecting issue started recently - Sony Xperia T, TL, TX, V

Hi!
Have been using Xperia TX for about a year, and my routers and their settings remains the same.
However, starting from this week, my Xperia TX have WiFi disconnecting issues on both routers (a Netgear and a Belkin router).
I checked the WiFi settings menu when the problem occurs, it displays "Connecting..." and soon "Disconnected".
Switching WiFi off and turn it on again or enabling Flight mode and switch back would not help.
The only way to solve the problem is to restart my phone, however this is getting pretty annoying.
Have someone faced the same issue, too?
Is there any troubleshooting I can do?
Thanks!

It turns out the WiFi chip was dead.
Changed the main board and solved the problem.

Related

[Q] WiFi problem

I have problem with WiFi on my new RAZR i.
It is working fine for one or two days. After that I'm getting strange behavior.
When I turn on the WiFi, phone connects to WiFi network but after I while WiFi connection is lost and after that it is unable to find any network.
Turning airplane mode on and off sometimes helps. Reboot of the phone (shutdown and power on) always helps.
What can it be? Hardware? Application? Bug in 4.1.2?
Hi.
Is this on just one wifi device (home?) or you see this behavior everytime (mean everywhere) you use wifi? There is sometimes some strange uncompatibity issue between devices. I have HUGE problems with Belkin and TP link, while Airlive (Ovislink) products work stable with my Razr i.
I see that every time (mean everywhere) when I use WiFi. I have removed WiFi manager and Skype and now it is working fine. I'll test it a little bit longer to be 100% sure.
After that I will install WiFi manager and Skype once more to pinpoint the problem.
Have you gone into your WiFi and gone into advanced and unchecked avoid poor connections? That was causing me a major problem because my phone almost had a choice in whether to connect.
Sent from my rooted XT890 with unlocked bootloader using xda premium :3

[Q]Suddenly losing WIFI connection when phone is idle

Hello.
I am using my I9000 for a good while now and i am running cm11-20150901-SNAPSHOT-XNG3CAO3G0-galaxysmtd. Everything was running fine so far, but suddenly for some days now, the WIFI connection somehow gets lost when it's idle.
When this happens (and i don't know on what timeframe it does) and i activate the phone (pressing the home button) the WIFI symbol is either shown and then disappears or is already gone - but then after some seconds comes back and WIFI is on again.
Yes, i do have the setting for standby WIFI on always, so this should not happen.
Does anyone have an idea what could be the problem here?
Also i do have a fritz.box 7390 which supports a 5GHZ network - does the I9000 support a 5GHZ wifi? Maybe it's the router that's causing the issue an switching to the 5GHZ might fix it - but so far i could not see the network when it's on 5GHZ.. So i guess it's not supported but thought i might ask anyways...
Thanks!

Dodgy wifi

Has anybody had any problems with their WiFi not connecting? My device seems to fail to connect to wifi after a couple of days and just sits trying to connect. Toggling WiFi doesn't seem to resolve it, and I have to reboot the entire phone to get it back online.
No problem here.
Connects very quickly, never seen it fail to connect, even on my works dodgy BT homehub 3, which used to tie my old Z3 compact up in knots..
Yep.I thought that Snapdragon 835 cause this problem. Xi oami 6., ZTE z17 and Op5 had the same question with WI-FI connection.
gesongwei said:
Yep.I thought that Snapdragon 835 cause this problem. Xi oami 6., ZTE z17 and Op5 had the same question with WI-FI connection.
Click to expand...
Click to collapse
I have a sd835 s8 and I haven't had any wifi issues whatsoever since launch. It's a sample size of 1, but I don't know if it's truly due to the sd835
I haven't had any WiFi issues. In fact my WiFi connections have improved using the XZ1 compact over the X performance (the X performance dropped its WiFi connections 3 times during my data transfer to the new phone)
I've had my XZ1c for about a week now (European model) and it connects to my home network (5G) normally. Signal strength is fine, although the galaxyS6 it replaced definitely had superior reception. I do have wifi issues, but only when already connected to the network. When the phone is asleep (screenlocked) it seems to lose an active connection. The wifi connection should be on at all times, even asleep. It will show the wifi symbol, but data apps don't load, and it will have lost the connection as remote for spotify connect (playing on my reciever). It will also switch to mobile data at random times with normal wifi signal strength (even though I toggled this function off in the developper settings).
I'm not sure if this is something that can be fixed through system updates. I haven't seen any forum posts with similar problems though, so I'll try to document what is actually happening before I contact Sony support.
I bought the US version and flashed the UK firmware to get the fingerprint reader to work. No issues whatsoever with this phone. No Wi-Fi issues, overheating, signal strength, battery, nothing. Everything works just perfectly.
Same issue here. Mine is Europe (NL) version. The upload and download speed can be very unstable. And especially when I take it a bit far way, even you see that it's connect to the wifi with full signal strength, it said internet is unavailable.
I'm not sure if this related to the system update of last weekend or not.
Further to my issue. My phone will drop wifi connection and repeatedly try and connect - it usually cannot see any other networks at the time. Restarting the wifi on the phone, or rebooting the access point do not help. Running a packet sniffer on the LAN shows no activity, which indicates the issue is to do with wireless handshaking.
The problem occurs every few days and the only way to resolve it is to reboot the phone, which fixes it instantly.
I contacted Sony and they told me to do a complete reset on the phone, this didn't work. I updated my findings and pointed out that it's seems to be a firmware compatibility issue. Of course, you only get to talk to first line, and as a reset didn't work, they want me to send it off for a warranty repair (which of course will be returned with "no fault found" as no doubt their wifi will be different enough for it not to have been picked up on day 1 testing).
I'm currently trying to gather a bit more information on the fault, e.g. does it only happen on my home wifi etc. I've disabled channel bonding but that didn't help, and I've not jiggled my DHCP settings after seeing plenty of posts describing wifi problems on Oreo for other phones.
It doesn't happen frequently enough and I don't have the time to delve deeply into the network to identify the cause.
One interesting thing was that it went funny at home, but it was working when I got to work. When I got home it still couldn't connect. So I suspect it's to do with a particular compatibility issue somewhere.
no problem here conecting to 5 and 2.4 wifis...
android_fury said:
I bought the US version and flashed the UK firmware to get the fingerprint reader to work. No issues whatsoever with this phone. No Wi-Fi issues, overheating, signal strength, battery, nothing. Everything works just perfectly.
Click to expand...
Click to collapse
I haven't gotten around to this yet. Do you still have wifi calling and volte available?
---------- Post added at 11:05 AM ---------- Previous post was at 11:04 AM ----------
So far my wifi has been fine...
Mine is worst, i couldnt get it to connect at all but all my other device including xperia xa, xzp, laptop, Ps4 PS3, everything connect without any issue whatsoever, already excahnged once and still the same.
Think mine is struggling with either a single access point or VLANs. I need to dig further, but that requires buying a new AP - this phone is getting more and more expensive!
exactly same issue as Dashers describes with my XZ1c. I am not watching it closely, but it seems that it is hapenning after around 2 days online. Never happened before on same network with my previous Z3c, which had run months without restart and any problems whatsoever (till its display died
Dashers said:
Further to my issue. My phone will drop wifi connection and repeatedly try and connect - it usually cannot see any other networks at the time. Restarting the wifi on the phone, or rebooting the access point do not help. Running a packet sniffer on the LAN shows no activity, which indicates the issue is to do with wireless handshaking.
The problem occurs every few days and the only way to resol... .
Click to expand...
Click to collapse
I have more or less the same issues, and a reboot always solves it. It happens with both routers form ASUS and Draytek.
Additionally I see issues with Spotify connect dropping or not being found on my Sonos (hardwired to LAN), but not so much to Chrome Cast Audio on the same network.
I don't have a problem connecting to wifi, but I seem to have a different issue. Even though wifi scanning is toggled off in settings, my phone still seems to be scanning according to Battery Historian. I think this is one of several things contributing to my high idle drain. Does anyone else have this problem?
jrbmed08 said:
I don't have a problem connecting to wifi, but I seem to have a different issue. Even though wifi scanning is toggled off in settings, my phone still seems to be scanning according to Battery Historian. I think this is one of several things contributing to my high idle drain. Does anyone else have this problem?
Click to expand...
Click to collapse
Have you turned wifi scanning off ?
settings\Lock screen & security\Location\Scanning - turn wifi scanning off
Didgesteve said:
Have you turned wifi scanning off ?
settings\Lock screen & security\Location\Scanning - turn wifi scanning off
Click to expand...
Click to collapse
Yes, wifi and BT scanning are both turned off in settings and have been since the beginning, but both seem to be happening anyway according to Google's Battery Historian tool. When I go back in to see if they've been toggled on by an app or something, they still appear to be off.
Dashers said:
Further to my issue. My phone will drop wifi connection and repeatedly try and connect - it usually cannot see any other networks at the time. Restarting the wifi on the phone, or rebooting the access point do not help. Running a packet sniffer on the LAN shows no activity, which indicates the issue is to do with wireless handshaking.
The problem occurs every few days and the only way to resolve it is to reboot the phone, which fixes it instantly.
I contacted Sony and they told me to do a complete reset on the phone, this didn't work. I updated my findings and pointed out that it's seems to be a firmware compatibility issue. Of course, you only get to talk to first line, and as a reset didn't work, they want me to send it off for a warranty repair (which of course will be returned with "no fault found" as no doubt their wifi will be different enough for it not to have been picked up on day 1 testing).
I'm currently trying to gather a bit more information on the fault, e.g. does it only happen on my home wifi etc. I've disabled channel bonding but that didn't help, and I've not jiggled my DHCP settings after seeing plenty of posts describing wifi problems on Oreo for other phones.
It doesn't happen frequently enough and I don't have the time to delve deeply into the network to identify the cause.
One interesting thing was that it went funny at home, but it was working when I got to work. When I got home it still couldn't connect. So I suspect it's to do with a particular compatibility issue somewhere.
Click to expand...
Click to collapse
I have this exact problem. One second its 100% signal and is workin as expected. The other second it just drops and tries to reconnect like crazy. I have even had moments when i am unable to find my wifi after said disconnect. All my other devices is working like normal on my wifi. Using Asus n66u 5ghz.
I have been having the same issues as mentioned above with my XZ1 compact(european). My issues with dropping wifi signal seems to be happening when there are two different wifi signals to choose from. They are both on my local network. One is an extender due to the size of my house. When it can detect both signals, it can't make a decision on which one to choose. Once I remove a device(forget wifi device), it stays connected to the other with no problem. Since it isn't trying to compete with the other.
Has there been any improvement on this issue?

Disconnecting from Wifi

I've been starting to get this problem recently where even if I stood directly next to my router the phone would just disconnect from the wifi at some point. Had this on my old iphone se too but not on my computer so idk how it could be related. Anyone else been getting disconnected from the wifi a lot?
It could be a issue caused by the router. See if this happens when your phone is connected to other routers.
When this happens again, turn your router off and back on and see if there's any improvement in the situation.

Wifi constantly dropping after 58.1.A.5.441 update [w/ workaround]

My XQ-AT52 (dual sim HK) became unusable after recent 58.1.A.5.441 update. Wifi constantly connects - disconnects every few seconds, and after several tries, it gives up then nothing would show up in wifi list. Tried airplane mode/reboot/factory reset/software repair and no luck.
After hours of desperately poking around settings and google, a weird workaround was found: turn on hotspot first, then connect wifi like usual. It keeps connected and fully working until the second hotspot gets turned off. I guess maybe an overly aggressive battery-saving rule was introduced in the update, wrongfully shuts down normal wifi connections and got overridden by hotspot. But I can't find any proof in logcat.
Hopefully this will be fixed in the next update.
Edit:
Upgrade to 58.1.5.474 did NOT fix this problem.
Upgrade to 58.1.5.530 and problem fixed.
I'm having a related issue with Xperia 5 II (XQ-AS52 Dual), seemingly since the same update 58.1.A.5.441.
For me the problem is that 5GHz networks work fine for around one day, then they get disconnected for no apparent reason. At this point, 5GHz networks won't show up in the list of Wifi networks until I restart the phone. Then I can see and connect to 5GHz again but the same problem re-occurs after around one day. Really annoying !
No issue though with the 2.4GHz networks apparently.
I wanted to downgrade to the previous firmware to confirm my suspicion, but can't find it on the web for my region (EU).

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