Weird Wi-Fi problems - Xperia Z5 Premium Q&A, Help & Troubleshooting

I have the E6883 model dual SIM phone. I've had it about a year now and it's updated to 7.1.1 all stock.
What's strange is that a sudden problem has come up in that the wi-fi will connect to a network but has a little "x" mark on the signal icon.
It will say "connected, no internet".
Which is odd cause it worked before and everything else works in the network. I didn't change anything about the wi-fi network. Also,
it does seem like I can use the internet if I use the browser and things like WeChat and Instagram work. But some programs like Whatsapp
or Final Fantasy BE say that no internet connection is found. It's very odd.
*Update
So, it seems every single Wi-Fi network now reacts that way. It's very odd and a bit annoying. I travelled recently to USA from China (to visit family) and in USA it was fine, but on
the return trip I couldn't connect to any wi-fi at airports and now nothing anywhere.
Anyone else encounter this before ?

Related

HELP! Major network problem :(

Hi all,
I got my Desire from the British carrier "Three" last April when it came out. It was stocked with Android 2.1 but the phone was unbranded and not locked so making life much easier.
I rooted the phone weeks later and flashed a number of various roms and radios (usually newest ones recommended by rom developers) and just played around with them. No problems ever occured and everything went smooth.
However a while ago (about 4 weeks I would say) strange thing happened: when the carrier 3 does not gave 3G coverage it usually switches to other network's 2G roaming service. It is also possible to switch to 2G permanently by forcing it via phone settings. It stopped working in Central London for me while still worked elsewhere (very strange) so I had to rely only on 3G service. I thought it was a network issue at first but now I'm not sure.
Later (or at least so I noticed) the connectivity started fooling around: even when standstill (i.e. NOT in a train, bus etc.) and staying at home the network connectivity just disappears all of a sudden. Sometimes it comes back by itself and sometimes I just do it manually via netowking settings. This is much more common when on the move (i.e. on the train etc. even though it never used to happen before). Moreover, sometimes while manually searching for network it says "your sim would not allow to connect to this network" even though I try to connect to the correct one. Instead I switch "WCDMA only" and "WCDMA/GSM auto" options and connection comes back by itself. Then it disappears again after a while. Even more strangely, connection does not disappear if I am talking on the phone with someone but in other situations (such as browsing internet) it just disappears and I see no bars in network reception indicator and cannot connect to internet or make phone calls.
I know 3 has a reputation (deserved or not) of having "bad" network but I don't think this has anything to do with that. My Desire used to work fine before and never had such problems (except in specific spots which have bad coverage). Moreover, I have another old phone and it works fine without any problems with networking while the Desire messes around. I am sure it has either to do with firmware or, worse, hardware.
I have tried a number of roms, radios and settings and it's the same thing all over.
If nothing works is there a way I can still bring it to warranty service after flashing "unrooted" stock rom if there is one available? I'm so frustrated because I have no idea why this is happening.
Its because three have switched off 2g roaming I have the same problem. Search Google
Sent from my HTC Desire using XDA App

Data connection keeps randomly not working?

It seems random when the data connection works and the internet works on my phone. I'll sit there with full 3G signal and i get "cannot find the DNS Server" error when trying to load webpages :S
is this a problem with my Samsung Omnia 7, Windows Phone 7 or my network (Orange UK)?
I have this problem on my HD7 as well. If I have a 3G connection, it doesn't work. It only works on H (HSDPA).
Funnily enough, I had the same issue with my HD2 running WM6.5, which makes me wonder if WP7 is using the same comms drivers.
I have this problem too! A LOT everyday in diferent locations.
Actually how can I enable the HSDPA on my HD7? Because I can only get 3G.
These are just network errors.
I use internet alot and it happens on every device I had.
My WP7 is actually pretty stable in this regard.
Same! Never works on 3g only ever H you sure its just network errors cause it happens alot
YES this is a major problem for me with my Omnia 7, I even got a replacement phone from my carrier (Optus Australia) because of it... and it's exactly the same. It's extremely frustrating and makes the phone damn near unusable. Happens on every device? what a load of rubbish, if I put the SIM in my old iPhone 3GS it works FLAWLESSLY. I don't know what I'm going to do.
doministry said:
These are just network errors.
I use internet alot and it happens on every device I had.
My WP7 is actually pretty stable in this regard.
Click to expand...
Click to collapse
Can you explain then, how come a reboot always fixes the problem?
Jim Coleman said:
Can you explain then, how come a reboot always fixes the problem?
Click to expand...
Click to collapse
Yep, I have the same problem with my Omnia 7.
On all 3 of the networks i've used it on, T-Mobile, Virgin and GiffGaff.
Only solution is to reboot the phone.
I thing i've noticed, is it seems to happen when I move from an area where I have WiFi access (Home/Work/Cafe) to an area where i'm using a Phone network ?
I think we can only hope that the upcoming WP7 update fixes this. Also it seems enabling airplane mode then disabling it also fixes it in a similar way to rebooting the phone.
johnnymatrix said:
I think we can only hope that the upcoming WP7 update fixes this. Also it seems enabling airplane mode then disabling it also fixes it in a similar way to rebooting the phone.
Click to expand...
Click to collapse
I'll make a note of that, cheers!
Im having the same issue with my HD7. Only EVER works on H. Not on G or 3G. It's driving me insane. The exact same sim on the same provider never had an issue on my Touch Pro 2, but this phone is shocking for internet
I get this occasionally on my HD7. Not really an issue right now. It does get annoying sometimes when the wifi in my house isnt strong enough to connect
mrcalais said:
Im having the same issue with my HD7. Only EVER works on H. Not on G or 3G. It's driving me insane. The exact same sim on the same provider never had an issue on my Touch Pro 2, but this phone is shocking for internet
Click to expand...
Click to collapse
You do realize that phones switch to H only while they are actively swapping data, then fall back to 3G while dormant, to save battery?
Try it - leave your phone alone for a bit and it will switch from H to 3G. Now access something on the net and it will switch to H (if possible) to get the data, then after a few seconds of inaction it will switch back to 3G.
So yes, it is correct that it only ever works on H!
Mind you, it would be nice if it worked on G too, I'm sure it should but mine never does.
hm i thought the " H " means that i dont get 3G signal.
but i think i had the same problem!
solution:
you only need to turn OFF WIFI
somehow its not using 3G when wifi networks are close,
even if you not connected to one.
turn OFF wifi or maybe only "discover new networks"
turning OFF wifi always brings me 3G back ...
Just to add my experience here...
I have a Samsung Omnia 7 and had never experienced any issues with 3G/H data/internet issues on the 3 network in the UK.
However, I've come over to Australia to visit the folks and have put in a Virgin SIM, now I really struggle with this. The connection just isn't working even with full 3G signal.
As pointed out, toggling my Airplane Mode works most of the time - I guess this is because the phone re-registers itself with the network when you enable>disable airplane mode (just like it would if you rebooted it). Curiously toggling the data connection option seems to have no effect.
Pain in the a*se.
I had connectivity issues with my Samsung Omnia 7. I worked out that my phone was not playing nice with my router and so my wifi connected but didn't actually work.
Also, I found that 3G performance was sub-par and many apps timed out because they were taking so long to get connection.
I solved these problems by flashing a new firmware. It was a little tricky and it is potentially risky, but a quick google will lead you to the relevant information.
I used a European firmware (I am in Australia on Optus), but it works fine. I just had to change all the language settings.
Now my phone's 3G and WiFi connections both work a lot faster (no more waiting for an eternity for the marketplace to open for example).
I have the same problem and read on create.msdn.com it has something to do with how wp7 handles the connections.
If the provider cuts off the connection frequently it loses its 3g signal or something like that. Thats why my push notifications are just unreliable. If I take my sim out and use wifi only. It just works and keeps working as soon as I connect to wifi. When 3g comes into play and the carrier cuts me off because im not actively using, the phone struggles to recconect for push etc.

HTC10 wireless issues

Hi folks,
Had a search in here and the rest if the internet (maybe not all of it...) but struggling to find anything to match my problem.
It rears its head in a couple of ways. First off, I'm getting a lot of what appear to be DNS issues on 4G data (DNS server address cannot be found). Sometimes toggling data or airplane mode will fix it. Works fine on Wi-Fi, but could be when it's first switched from Wi-Fi to mobile data.
Second one... Cell connection and GPS connections will drop (line through signal strength bars, sat Nav app showing no GPS) but will reconnect after half a minute or so.
Can't tell if the two issues are related as they both appear to be quite random. Any help would be greatly appreciated and stop me littering the street with a phone being thrown out of the window.
More info: I can search from the search bar and get results, but clicking on a link and opening the browser or chrome results in the DNS errors. Also, can't pin it down to chrome, as similar things happen in Relay (Reddit browser).
I'm having the same problem, were you able to resolve it? Not sure if its a problem with the phone or network but know someone else who's having the same thing (EE UK network).
I was having the issue last week on EE UK. It seemed to be dependent on area too. Its resolved now for me

Mobile connection dropping randomly

Hi, I've been using the Xperia XZ2 Compact for the past week and have been experiencing an issue with mobile connectivity. Here is a copy from the thread in Sony support Forum.
I'm also experiencing this issue, but I get random disconnects and/or changes of carrier even when standing still. Here are some thing I also noticed and I hope we can get a fix soon:
- when I connect through national roaming I get a notification that it is disabled even though it's not and it disappears immediately.
- Sometimes when I'm connected to LTE+ I don't have any mobile data for short periods of time, but I think this issue is not related.
- When I lose signal nothing happens other than the signal bar changes to an outline but when I get randomly disconnected(or unregistered if you want to call it that way) I get a notification that my mobile carriers' network is unavailable.
I live in Poland and I'm using a virtual carrier called "mobile vikings" that uses the infrastructure of P4(commonly known as "Play") and allows roaming to t-mobile and "PLUS" but only on max H+ speeds. I tested my SIM on my previous phone - Xperia M5, and it's working just fine. I hope because it's happening to other ppl that it's a software issue that can be fixed in next updates.​Is anyone also experiencing a similar issue? I can post my log I extracted if anyone wants to see it.
https://web.archive.org/web/2020010...Compact/GSM-disconnects-randomly/td-p/1324651
Same issue here, with Telenor Hungary. Usually I got this on low reception areas, where my previous Z5C still used to work. I'm "disconnected" right now, so I tried to search for mobile networks: my home network shows up as "Emergency calls only" for 2G/3G/LTE also.
I have tested my SIM now on 2 other phones and it works just fine. I also contacted my carrier and they reconfigured my number in their system(something like a reboot for your number). Now I'm 100% sure it's the phone's fault. Sony needs to at least acknowledge it.

Question Connection Issues

I recently bought a Samsung S22 and for the last couple of days now I have started to see issues with the network connection (Not Wifi). I will see 3 or 4 bars that show signal strength with 4 or 5G, but when I go to open an app like TikTok, Facebook, or even Google Chrome the app just keeps loading like it isnt connected to the network. It seems like if I wait it out things start to work again after some time. At first I thought it may be an issue with the phone trying omegle xender to switch from 5G to 4G but now I'm not so sure. I wanted to check to see if anyone else is having this issue?
Same issue here, on Mint Mobile (T-Mobile MVNO). It usually happens while I'm driving or in certain buildings. Toggling airplane mode off and back on usually resolves it for me.

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