yashsingh1/xdaforums huggingface dataset:
[Xperia Z2 Q&A, Help & Troubleshooting] sonyhelpuseless:
z2 wifi not connecting

Hey guys,

Prob has been solved for me.

Unfortunately had to do a factory reset. Phone is literally 36 hours old lol

Settings under 'show advanced options': proxy none, ip address dhcp.

I have noticed wifi doesnt kick in though till after unlocking the phone and usually takes a few secs for the 4g (mobile data) to disconnect. Wifi HASNT needed to be manually turned on so far. Fingers crossed lol

Cheers.
[Xperia Z2 Q&A, Help & Troubleshooting] raducanmihai:
Try in WiFi/Advanced to uncheck "Avoid poor connections" and "WiFi optimisation". Mine works ok but when I had "Avoid poor connection" checked I noticed that it didn't want to connect to WiFi even though I have a good connection at home.
[Xperia Z2 Q&A, Help & Troubleshooting] jimsey:
I've got the same problem, phone is 1 day old and the wifi drops signal every few minutes. So far I've tried a restarting the router, factory resetting the phone, using a manual ip, unchecked optimise wifi and avoid poor signals. Its UK unlocked phone running 3 firmware.

Now debating whether to flash rhe UK ftf or return the phone to the shop?
[Xperia Z2 Q&A, Help & Troubleshooting] BanziBaby:
If you have stamina mode on make sure that turn wifi & data off when screen goes off is unticked, it is ticked by default meaning every time the screen goes off it turns those features off & turns them back on when screen is unlocked. I make sure that is unticked & I haven't had any issues with wifi dropping.
[Xperia Z2 Q&A, Help & Troubleshooting] lynxboy:
Having the same issue with my newly purchased Z2, however only on my work network so far. WiFi connects, signal is great, but connectivity poor and it's taking an age to load websites/send emails/receive WhatsApp etc. It would be great if we could monitor this thread as more people get the phone.

Just performed a factory reset for the time and will test again when I reach the office in the morning.

Regards.
[Xperia Z2 Q&A, Help & Troubleshooting] kartoonz:
seems a problem with the UK phones, havent noticed this issue in the asian forums...
[Xperia Z2 Q&A, Help & Troubleshooting] lynxboy:
Just an update. Factory reset has failed to fix my issue. Going to look at switching the WiFi channel when I get into work tomorrow. Fingers crossed it resolves my issue.

Regards.
[Xperia Z2 Q&A, Help & Troubleshooting] jake460:
i am having same wifi problems, i think its the 2.4GHz wifi connection, my BT home hub 4 has dual band wifi 2.4 and 5GHz, when it connects at 5GHz it works fine but at 2.4GHz it drops connection all the time, cant stream films, or watch you tube, downloads fail after a short while. shame there is no option to choose what wifi band you can use instead of it being auto.

All my other devices, ipad 2, nexus 7, galaxy s3, s2 all work fine on my router at 2.4 and 5GHz, just my Z2 it's poor.

Edit......there is a way to make it connect to 5GHz only, by creating a new 5GHz connection via BT home hub in the advanced section menu of the router.

Seems to have solved my wifi connection issue, limiting my Z2 to 5GHz band only and all my other devices use 2.4GHz

Sent from my Z2
[Xperia Z2 Q&A, Help & Troubleshooting] benengyj:
I'm having WIFI issues too. In Singapore using a locally bought Z2. It's connected to my router at full strength but it keeps dropping the connection even while "connected".
[Xperia Z2 Q&A, Help & Troubleshooting] lynxboy:
Fixed my problem. Seemed the Z2 didn't like the fact that one of the Airports in my office was set to dual band 2.4ghz/5ghz bgn. Set both airports to 2.4ghz b/g and it's working fine. Hope this is of help to someone!

Regards.
[Xperia Z2 Q&A, Help & Troubleshooting] benengyj:
I seem to have fixed mine by connecting to my 5GHz network instead of the 2.4GHz
[Xperia Z2 Q&A, Help & Troubleshooting] adam2203:
Xperia Z2 D6503 Wifi connections issues

I seem to be getting the same sort of wifi issues as previously stated. I cannot hold a wifi connection on the 2.4ghz band fro more than 20s before its dissociated (ie i still have full connection to the router (3 bars) but cannot get through to the internet). This happens no matter what router i am connected to, whether its at home or at work.

I have tried:

Setting the Wifi optimization checkbox off. No difference

Avoid poor connections is off. No difference.

Stamina mode is off. No difference.

Keep Wifi on during sleep is set to Always. No difference.

Sleep timeout to 30mins. No difference.

I have factory reset the phone. No difference.

I have also check to see if it is my router at home. I have switched between every channel available which made no difference. Security is Wpa/Wpa2 PSK AES which makes no difference. I only have the 2.4ghz available on that router at home (same at work).

My Note 3 and HTC One connect to both routers with no problems at all and do not drop out. Same goes with Sony Vaio Laptop.

I have installed Wifi Fixer on my Z2 to see if it can alleviate the problem and it does somewhat. instead of manually having to turn on and off the wifi toggle to reestablish a connection, the Wifi Fixer does it for me.Approx. every 20-30s in its log it will show the phone "dissociating" from the router, and the the app tries to "reassociate" the connection.

I can connect through wifi transfer to my Note 3 without issue, and the same goes for my TV, so it cant be a hardware fault, as the connection is still excellent strength for both (as well as the router, tested with Wifi Analyzer). This is a very frustrating problem as it makes watching youtube movies impossible, and hotspotting, skype calls, etc.....

And dont even get me started on the bluetooth dropouts. I am disconnected from a bluetooth connection every 66-70s without fail no matter what i try. No issues with my Note 3 and HTC One in the exact same conditions. It will disconnect then reconnect straight away with a delay of about 3 seconds, which makes calls and listening to music a VERY unpleasant experience.

Any ideas on how to fix this? I love everything else on this phone but this wifi/bluetooth connection issue is making it unusable.
[Xperia Z2 Q&A, Help & Troubleshooting] s_superman:
I'm also having the same irritating wifi problem, trying to set DNS to 8.8.8.8 solved the problem for 1 minute and it disconnected again, I have full bars but no internet connection.
[Xperia Z2 Q&A, Help & Troubleshooting] Jehrlander:
I had the same problem.

But then I unchecked the setting "location based Wifi" in the "power management"-menu!

When I talked to Sony the thought it was a hardware problem so they told me to send the phone to service to get it fixed! Im happy that I did´nt have to do that!

Hope that this will solve your problem!
[Xperia Z2 Q&A, Help & Troubleshooting] kotton666:
Location based wi-fi is off by default.

I have the same issue that I stay connected to wi-fi, but get no data transfer so streaming music and video both stop. It makes watching YouTube videos and screen mirroring impossible for more than a few minutes. YouTube videos don't load most of the time. It's so frustrating.

It only seems to happen when streaming, it's like there's a time limit or something.

I bet it will be one of the devs here that comes up with a fix not Sony.
[Xperia Z2 Q&A, Help & Troubleshooting] mean-machine:
Will add my 2 cents, maybe it helps someone.

Before rooting, I was on .55 or .69 stock UK firmware. After, I loaded .402 and that was when problems with WiFi started.

I noticed that in places with old routers, all was ok, but in my place with WPA2/AES security setting, it would drop connection all the time. I have changed settings for WiFi security to WPA+WPA2/AES+TKIP and my problem has been sorted. If your router, doesn't allow you to run both of these protocols, you could change to just WPA.
[Xperia Z2 Q&A, Help & Troubleshooting] Kellos:
Same problem here too

I've had the same problem with mine too. I phoned Sony support a few weeks ago and they suggested I use the PC Companion to re-install the software. I did that and to their credit that actually worked - for a week. I never had a problem until I updated the software on the phone and then noticed problems the next day onwards - it could be coincidence however.

I have to reboot it a number of times a day, or disconnect the wifi and re-connect and hope for the best.

I have this problem at home, at work and even when I was travelling around Scotland I often couldn't use the wifi at the hotels. It either cannot obtain an IP address via DHCP and fails to connect, or it connects with excellent signal quality but there's no data transfer. When it is working however, the data transfer rate is fast.

I've tried everything suggested here and I don't believe (in my case at least) that it matters what combination of settings you try, it works until it decides it won't any longer and then it's anyone's guess what you need to do to get it working (but 80% of the time a full reboot works for a while).

I've only ever had HTC android phones the past 5 years (and rooted and custom firmware'd them all) and never had a problem with them, this one I've left stock and has been a complete pain.

Anyway, mine is going back to Sony for a repair, I'll be very interested to see if it comes back fixed. I'll let you know, but I will be sending their support a link to this page so they know there are others with the misfortune to have the same problems.

David
[Xperia Z2 Q&A, Help & Troubleshooting] bdithug:
This 100%. The only difference is mine usually works during the day, then craps out in the evening. Like you said a reboot usually does the job I find.
[Xperia Z2 Q&A, Help & Troubleshooting] arash.mid:
i have the same problem! i have 2 different routers. one of them works fine with z2 but the oder one has this problem! the funny thing is some times in the morning it works fine but not working in afternoon!! and in colse distance it's works! i hope it get fix in a update :/
[Xperia Z2 Q&A, Help & Troubleshooting] Greedyfly:
You sir are getting a 'thanks'... at least a very cautious 'thanks'. This seems to have done the trick with me as I am in the 3rd day with no issues, tasker turning on and connecting to WiFi as expected and all is rosey. Although if anyone can fix the 'connect to Sony Companion over WiFi' issue they'll also be getting a 'thanks' :D
[Xperia Z2 Q&A, Help & Troubleshooting] Kellos:
After my last post I can confirm that my wifi works perfectly fine if bluetooth is turned off. The moment I turn it on I lose connection, it doesn't disconnect, but there's no data transfer.

Problem is I bought a Sony smart band which needs bluetooth...
[Xperia Z2 Q&A, Help & Troubleshooting] Mobby:
Yup... I have wifi stability problems too, whenever bluetooth is on.
[Xperia Z2 Q&A, Help & Troubleshooting] CrabbyCakes:
Awesome thanks buddy... I was hoping the new Z2 firmware 17.1.2.A.0.314 (which by the way came through today) would sort the issue .... But sadly it did not....

So I thought what the heck I'll try some other stuff... So I came home tonight and turned the security from WPA/WPA2-PSK (mixed mode) to WPA-PSK only on my Sky Hub..... And hey presto my WiFi hasn't dropped out once with having Bluetooth on at the same time...

Which means I can use my Bluetooth for streaming and my Smart and connected whilst maintaining a constant WiFi connection...
[Xperia Z2 Q&A, Help & Troubleshooting] kokesh:
This is how it happened to me:

all worked fine (for lats three days at least since I've bought the phone).

I'm on 17.1.2.A.0.314 FW, the newest one at the moment.

My WiFi crapped out after I've turned the location WiFi or whatever it is called. I've turned that off, but it didn't help.

With BT is off and I turn Airplane mode on and off, everything is fine, but as I listen mailny throught BT SBH20 headset and use the SmartBand, that isn't a viable option for me.
[Xperia Z2 Q&A, Help & Troubleshooting] CrabbyCakes:
Right chaps... Thought I would update on what's been happening...

Finally caved and sent my Z2 away to Sony for repair after a long chat with their support team. Took 5 days from start to finish and they replaced an antenna and coax and my phone is awesome. I have a smart band which needs Bluetooth which I now have on 24/7...

But I still have my home WiFi on WPA since I'm still double checking the Sony repair is ok before I change any other settings... And I've left of location based WiFi for now..
[Xperia Z2 Q&A, Help & Troubleshooting] bigstoo:
I had similar issues - wifi dropping inexplicably and wouldn't connect again unless I toggled airplane mode or rebooted. I too have bluetooth on 24/7 connected to my car/watch/headphones.

Here's something to try...

Manually switch off wifi, but leave bluetooth on. Now reboot the phone, ensuring wifi isn't on after boot up. Then manually switch on wifi. I've found it seems to play nicely now.
[Xperia Z2 Q&A, Help & Troubleshooting] bdithug:
I just downloaded wifi fixer from the play store. Fixed my wifi issues completely. My z2 was disassociating with my router randomly every couple minutes. Wifi fixer reassociates it automatically. Sony really needs to fix this bug as I shouldn't have to use an app to have working wifi.
[Xperia Z2 Q&A, Help & Troubleshooting] wanted66:
Connected to 5Ghz wifi fixed the issue for me!

I have had this annoying problem for the past 3 months. I have 2 routers with 2 different connections. Luckily one of my router had 5Ghz wifi.. So fired it up and connected the Z2 with it. Bingo! That did the trick! Thanks for the tip guys that really saved me a lot of time having to reset factory cause I would have to spend days backing up everything and restoring :p
[Xperia Z2 Q&A, Help & Troubleshooting] morten8181:
solved

I switched from WPA2 to WPA/WPA2 on my router and AP and all my wifi related issues were solved.
[Xperia Z2 Q&A, Help & Troubleshooting] kfran1:
i have a slightly different wifi problem

Hey guys, my problem with wifi is slightly different. When i try to join a wifi network there is an authentication problem even though i enter the correct password. If i turn airplane mone on and off or restart the phone, then it connects without a problem. If i go out of wifi range and back again, it will not reconnect. If i enter and exit airplane mode it reconnects. I have sent it to a service center where they replaced the antenna, but the problem is still present. It seems to me like a SW issue. Do you have any ideas?
[Xperia Z2 Q&A, Help & Troubleshooting] coldfusion97:
I have the exact same problem with my Xperia Z2. and I dont know what to do

I am out of solutions, I need your help people, I tried changing the security type of my router but it doesn't do any good
[Xperia Z2 Q&A, Help & Troubleshooting] senthilsixco:
Xperia Z2 wifi

I can use the wifi in my home wifi,

but cant use it in office wifi

shown 'unsafe browsing'

i gone to advanced

and connected

logged in successfully.

But no content, anybody can help me?

Thanks

Senthil34in@gmail.com
[Xperia Z2 Q&A, Help & Troubleshooting] Chitii:
I've turned off location based wifi in settings and switched back to dhcp from static for ip setting< advanced setting<modify network<press on wifi name for several seconds.

Hopefully this help.
[Xperia Z2 Q&A, Help & Troubleshooting] saldirai:
First, sudden connection drops and reconnects.. and 1 day later, booom. WIFI and BT modems are shut down for good. Factory reset, firmware repair didnt solve it. I hope it'll be repaired or changed under warranty.
[Xperia Z2 Q&A, Help & Troubleshooting] gazza35:
Without a doubt it's a software issue, Sony promised a resolution in 5.1, I'm dubious, still waiting on the update, I really don't see it happening this month.

I don't understand how they got it so wrong, my z1 was perfect on lollipop, where on earth did they go wrong with Z2, the phones aren't that different, this is what I loved about Sammy, could change wifi channel in default settings.
[Xperia Z2 Q&A, Help & Troubleshooting] Madhur Masih:
Hi all,

My Sony Xperia Z2 wifi and Bluetooth not functioning, I have done software degrade and flash the system but not working.

I don't think so, wifi antenna is faulty because if its happen mobile shows the wifi signal when I close to the Wifi Router.

Device is non-repairable via sony India due to buy from Dubai.

I try to find out WIFI IC in the device but unfortunately its not found in Google. So please provide the Wlan IC no. and its position in the Mainboard.

or if you have resolution other then this please suggest.
[Xperia Z2 Q&A, Help & Troubleshooting] agha_jo0n:
any one in topic tested this problom on android 5.1 ?

does problem solved or not?
[Xperia Z2 Q&A, Help & Troubleshooting] nimicitor:
The problem remains in 5.1.1.
[Xperia Z2 Q&A, Help & Troubleshooting] rehanafzalm:
I have Sony Xperia Z2. when I update my mobile before 4 days then regularly my WiFi droping. Connecting for 1 minutes and again automatically disconnect and again connect why? Please solve my problems
[Xperia Z2 Q&A, Help & Troubleshooting] bdithug:
To be honest, as much as I love my z2... The biggest issue I've been dealing with from day 1 is wifi issues. This has got to be the worst phone for wifi I've ever used.
[Xperia Z2 Q&A, Help & Troubleshooting] adeel271992:
Did anyone find any solution to this issue yet? The problem persists in Marshmallow as well. I imported the phone; SONY doesn't offer any services in my country. Pretty annoyed. It is a perfect phone, just this wifi drop or 'pause' is very annoying.
[Xperia Z2 Q&A, Help & Troubleshooting] bdithug:
Last night I flashed niaboc79's existenz marshmallow 2.0. So far my wifi seems to be working well. Stronger connections when I go outside around my house.
[Xperia Z2 Q&A, Help & Troubleshooting] M94Khaled:
Wifi problem was fixed in the latest update. 575
[7" Kindle Fire HD Q&A, Help & Troubleshooting] tmosxda:
Hey guys. I successfully rooted and installed twrp last night. This morning, I tried to install a custom rom but after installing and then rebooting I received an error message on the screen stating "Provisioning Fail". I tried a couple of other roms and have even tried the original stock Amazon rom but none of them will work. I followed a thread that I saw here and attempted a system recovery using fastboot and original img files,

This resulted in the loss of twrp on my kindle and now every time I boot, I get the normal kindle fire logo and then straight the the "Provisional Fail" screen. Please help. Cheers.
[7" Kindle Fire HD Q&A, Help & Troubleshooting] tmosxda:
Any ideas???
[7" Kindle Fire HD Q&A, Help & Troubleshooting] LinearEquation:
That usually comes up with a firmware update failure. Even people with stock units got that message before but it's been a while. You need to restore it via system restore tool again and use option 3.

Sent From Kindle Fire HD 7 running CM 11 4.4.2
[7" Kindle Fire HD Q&A, Help & Troubleshooting] tmosxda:
I have tried to restore it with a couple of tools that I found on the forum but I get an error message saying device not found. When I connect the Kindle, it doesn't even show up in the device manager on my laptop.
[7" Kindle Fire HD Q&A, Help & Troubleshooting] stunts513:
You need a fastboot cable to restore it.
[7" Kindle Fire HD Q&A, Help & Troubleshooting] tmosxda:
I was hoping that wouldn't be the case! Is it possible to make a cable myself without needing a soldering iron?
[7" Kindle Fire HD Q&A, Help & Troubleshooting] stunts513:
Eh yea but Its not fun and you still will need a cable that has a contact point for the pin that's normally soldered. Not all USB cables have them(and I believe the cable that came with the kindle didn't have the contact point either) You could use a paperclip and try to hold it in place but I don't recommend this, you might accidentally slip the paperclip and short something. The black hat adapters are nice. I recommend them, they go between a normal cable and the kindle.
[7" Kindle Fire HD Q&A, Help & Troubleshooting] tmosxda:
I am going to order one of those adapters and hopefully it will do the trick. Thanks for your help.
[7" Kindle Fire HD Q&A, Help & Troubleshooting] IrishMLK:
Simlar situtation

Were you able to get past this?

I had successfully loaded the 2nd bootloader and put CM 10 on my Kindle. When I tried to go to CM11, something got borked. All I could get was a boot loop with the normal kindle boot screen - I no longer saw the blue graphic.

I get provisioning fail only when I use the recovery tool - any version. Honestly I have tried so many things I don't know how to get back to stock.
[7" Kindle Fire HD Q&A, Help & Troubleshooting] LinearEquation:
Do you have a fastboot cord? Use the most recent SRT and choose option 3. http://xdaforums.com/showthread.php?t=1951254
[7" Kindle Fire HD Q&A, Help & Troubleshooting] IrishMLK:
I do have the fastboot adapter and option 3 still brings up the provisioning fail error. I have tried all permutations of the SRT and KFFA. I get nothing but provisioning fail unless I go back to the 2nd bootloader boot/recovery/system files. Then I get the orange kindle fire boot loop.

Thanks, MLK
[7" Kindle Fire HD Q&A, Help & Troubleshooting] south956:
I had this problem, I had gotten it due to trying to put different kernel on stock system. My way of getting out of this loop was using KFFA and doing the option that installs all partitions off a working kindle. It installs a total of 7 partitions,if I'm correct, and viola your fixed! That was the thing though.....I used another extra kindle I had in hand, I extracted the partition files from it and injected them to faulty kindle.

For your own custom Sig : http://xdaforums.com/showthread.php?t=1922304
[7" Kindle Fire HD Q&A, Help & Troubleshooting] tmosxda:
Sorry for the late reply.

I contacted amazon and they sent me a replacement kindle. I sent them back the broken kindle.
[7" Kindle Fire HD Q&A, Help & Troubleshooting] ellabankss:
Hi! I'm having the same problem with "Provisioning Fail" I bought a fastboot cable and used KFHD System restore tool. My Kindle Fire HD (2012) is unrooted and kept freezing until one day i opened it again and saw the Provisioning Fail on the screen. So chose option 3, going back to stock but when I opened the device, the Kindle Fire logo back but after a few seconds went back to Provisioning fail.

Can you tell me you used the KFFA? And what partitions did you mention about? Sorry I'm a total noob about all these stuff. Hope you can help me.
[MDA III, XDA III, PDA2k, 9090 General] smtownsend:
I've used three SX66 vairiants of the Blue Angle and all of them have Crappy Bluetooth reception. You have to have the phone is your shirt pocket on the side where the headset is.

I know its not the headset as we have tried 4 headsets and they all work great with other Bluetooth phones. I can answer my Nokia phone from 2 offices down the hall with my Logitech Traveler. On my SX66 I cant answer it from my Cargo Pants Pocket with out getting masive static.

All the SX66s I've used are the BT v 3900...

Any Suggestions?
[MDA III, XDA III, PDA2k, 9090 General] exodus1914:
Same Friggin' problem

I have been up all night searching for an answer to this as I thought it was perhaps a problem related to upgrading. Then I remembered it was doing it before I upgraded. I wonder if it has anything to do with radio version, etc.

I would really, REALLY hate to go back to using the default earplugs that tangle if you think too hard.

Come on guys, is there a BT reception fix I'm overlooking? I was in a conference call yesterday from home and it sounded like someone was balling up candy wrappers in the phone on my end and the other's until I had to disable the headset and continue with the XDA IIs to my ear. :evil:
[MDA III, XDA III, PDA2k, 9090 General] Jlm6:
no bluetooth fix sorry.

radio has nothing to do with bluetooth
[MDA III, XDA III, PDA2k, 9090 General] saints5354:
Reception really suck.....hope someone here can help....
[MDA III, XDA III, PDA2k, 9090 General] jdc:
I've been looking at this issue as well.

Per the nekkid blue angel pictures from the wiki, the bluetooth antenna looks to be a tiny chip looking thing...

Has anyone considered (or even did) replacing it with something a bit more substantial?

The wifi antenna is kind of small as well. GSM antenna looks OK.