Wifi Disconnections .370 SGP311 [SOLVED] - Xperia Tablet Z Q&A, Help & Troubleshooting

Hey guys, for some reason since last update .370 i've been experience some wifi disconnections that last only for a 1-2 seconds, then reconnect instantly. The problem with this is for some apps, like gameloft games when they try to download the data from their server then it gives me an error it happenes each 10-20 seconds. So are you experience something similar?
Thanks!
UPDATE:
It was a channel issue with my router, it was set to auto channel assignation, i just put it as fixed and channel 9, and the problem is gone. Hope this help someone.

Related

[Q] WIFI crashes when waking HTC One from sleep.

I have noticed in the last few days that my new HTC One is not waking from sleep with WIFI functionality. When it wakes, the WIFI symbol in the notifications tray is gone. When I go to settings, And look at the WIFI option, It says that it is disconnected. When I touch to configure the WIFI settings, the settings app hangs on a black screen. I have to reboot my phone to get the WIFI back. Is anyone else having this issue?
Phone Model: HTC One
Router Model: ASUS RT-N66R / RT-N66U
Frequency: 5ghz
I am now testing in the 2.4ghz frequency and will report back my findings.
I can confirm that I don't experience this issue with 2.4ghz. No drops in 4 days. When I switched back to 5ghz on the 5th day, I got the drop and freeze within the hour.
Sent from my HTC One using xda app-developers app
I'm having the same issue. Can't tell what frequency band it's on when it happens though sorry.
I am having the exact same issue. It coincided with installation of an app called mute-o-matic in my case. I was wondering if the crash is related to the installation of this app. Could any one experiencing this crash comment on this?
[Update] It has happened 3 times in the last week. Wifi function just locked up, and had to restart phone to fix. Very frustrating. It's reasons like this that is driving me back to iOS. All the amount of tweaks and customization is not worth it when the phone is not reliable on basic functions. iPhones may be boring, but it at least I never once ever in years on owning them needed to restart it to fix a problem.
[Update 2] Android 4.3 update seemed to have solved the wifi crash issue. It is running much more stable after the update. Had it installed for 3 days now, and no crashes or self-rebooting so far.
Cleaning
Thread has been cleaned. Please be respectful to others and do not incite.
[Update 3]
I previously thought that JB 4.3 update has rectified the wifi crash issue for good. After over a week with 4.3, wifi crash happened today.
The wifi option page was not grey-out, but it would not connect to any network, When I toggled it from "on" to "off" state, it failed to respond. At the end, only a phone reboot could fix it.
Frustrating to say the least.
[Update 4]
I can now reproduce the wifi problem when leaving the phone running on battery overnight. During the first week after 4.3 update, I left my phone plugged-in to power most of the time, and perhaps as a result, the wifi crash did not happen.
Basically, the wifi crash I am experiencing after 4.3 update is more or less the same issue reported by others on their HTC Ones (including One, One X, One S), where the wifi failed to connect after long period of inactivity.
http://forums.androidcentral.com/htc-one/284746-wifi-dropping-after-sleep.html
http://forum.xda-developers.com/showthread.php?p=40258131
http://www.htconeforum.com/forum/ht...fi-but-no-internet-connection-2.html#post8337
http://www.phonearena.com/news/Wi-F...C-One-X-or-HTC-One-S-Heres-a-solution_id29142
http://android.stackexchange.com/qu...en-scanning-for-wifi-since-jb-update-on-one-x
For now, I am going to switch "Keep Wi-Fi on during sleep" to "Always", as suggested in the 2nd link above. This should keep the wifi connection on the during sleep, and hopefully fixes the issue. I'll report back.

Severe network and data connection drops on MIUI 11 Q

I'm having random connection drops on the latest EU build. I tried reflashing the ROM, installing akhilnarang's vendor, changing kernels buy still no solution.
The phone will work well but suddenly lose mobile data (4G) connection for a few seconds and then come back. I noticed the VoLTE icon also disappears with it and then comes back but the network signal lines (on the status bar) show full signal the whole time.
Also, I'll suddenly drop a call sometimes and this is accompanied by the network signal lines disappearing (implying loss of network signal) and then coming back in a few seconds.
I have a very good signal from my carrier so that's not the problem. Also, the phone seems to work well for sometime (few hours) after a restart and then this "bug" comes back and I can't find any kind of solution to this.
This problem started to arise after I flashed the latest EU android Q build.
This bug is annoying and frustrating especially while playing online games.
Any kind of help will be greatly appreciated.
Thanks.
Many problems after Android 10 update
I have the same problem after updating my smartphone to Android 10, with no solution !
While i'm using data connection, i don't receive all the notifications in time.
I'm facing another weird problem which is the phone does a fast reboot after that it freezes for some seconds.
Same Ish
Same issue here, when streaming or downloading, my wi-fi or data connection will randomly drop and wont reconnect unles i reboot. Then will drop again once i start to download or stream. My other phones or laptop no issue.
Connections are good, as im writing this am streaming on my laptop but my poco refuses to connect to our wi-fi. Issue only popped up after the latest update

Xiaomi Redmi Note 9S Wifi stops working after leaving sleep mode

I have buyed the new released Xiaomi Redmi Note 9S and i have problems with the Wifi. When you let the device to sleep for few hours wifi stops working. When turning on the phone from sleep the wifi dont work and you have to turn the wifi off and on to restore it, then i receive all the messages at once when the apps (Line, Whatsapp, etc) reconnect to inet. It seens to happen only if the device is sleep for few hours. If is only sleep for few minutes it works ok. Anyone experienced this issue, knows how to solve it?
I noticed strange wifi behaviors too
I also encounter same issue...
please advise your rom version.
my device does not get that's problem
11.0.1 global
11.0.3 india global
11.0.5 india global
I have used my RMN9S more than a week ago and I don't have any issue with WiFi. My device connect to WiFi almost 24/7 without any problem. BTW mine 11.0.3 global
Mine is 11.0.3 global. When i awaked this morning and checked the phone it was working ok. No problems at all after all night in sleep mode. I am puzzled. I hope it was a "one" time fault and it works from now on. I come again if i have news.
Just got the wifi connected without internet... Had to disable and renable
This also happens to my Redmi Note 9S.
It happens with all current ROMs. I experienced it with global, indian and eu ROMs.
Its also random, it does not happen after x hours. Sometimes its just 1 hour, others is 7 hours, others it does not happen.
What I do:
I turn off the smartphone screen to sleep, with wifi on. AC connected.
I have some apps reading internet data every 2 minutes.
When I wake up, I see the wifi icon connected. But Internet doesn't work.
When I look at the apps, I can see that they stopped accessing internet at a random time in the night.
If I turn wifi off and on, internet works again.
It doesn't happen with wifi off and mobile data connection on.
I tried changing some values in dev settings. Also in battery settings. Nothing has worked yet.
With normal day usage, it can also happens, if the screen is off a few hours.
It not a router wifi issue. My old note 3 worked fine with the same wifi. My wife's redmi note 8 pro works fine too.
It can be something related to battery saving. But so far I have been unable to fix if.
It never happens with screen on, or with screen off for a few minutes.
So I dont think its a hardware issue, I think its software-related.
DjXavy said:
This also happens to my Redmi Note 9S.
It happens with all current ROMs. I experienced it with global, indian and eu ROMs.
Its also random, it does not happen after x hours. Sometimes its just 1 hour, others is 7 hours, others it does not happen.
What I do:
I turn off the smartphone screen to sleep, with wifi on. AC connected.
I have some apps reading internet data every 2 minutes.
When I wake up, I see the wifi icon connected. But Internet doesn't work.
When I look at the apps, I can see that they stopped accessing internet at a random time in the night.
If I turn wifi off and on, internet works again.
It doesn't happen with wifi off and mobile data connection on.
I tried changing some values in dev settings. Also in battery settings. Nothing has worked yet.
With normal day usage, it can also happens, if the screen is off a few hours.
It not a router wifi issue. My old note 3 worked fine with the same wifi. My wife's redmi note 8 pro works fine too.
It can be something related to battery saving. But so far I have been unable to fix if.
It never happens with screen on, or with screen off for a few minutes.
So I dont think its a hardware issue, I think its software-related.
Click to expand...
Click to collapse
Thank you DjXavy, your post is perfect to describe my issues. As anyone triying to contact Xiaomi about this problem? Are they even aware of it?
-deleted-
It could be a drivers or firmware problem. Xiaomi should be able to fix it.
What can we do:
1) If it happens to you too, please report it here and give details if you can. That way, Xiaomi can evaluate how common the problem is.
2) While it get fixed: Do someone know an app, or can build one, that check every few seconds if internet conection is working, and if it fails a few times, the app turns wifi off and on? It will require a rooted smarthphone to control wifi switch.
3) Do someone know how to send bug reports to Xiaomi? It would be good is they get a link to this thread.
I have updated to 11.0.5 now, lets see if its fixed or not. I have used the inbuilt report feature in the phone to report the issue but anything else except this post.
I have flashed xiaomi.eu 11.0.5 today. Still Wi-Fi Problems here. Hope Xiaomi get this fixed soon.
I have been contacted by Xiaomi support in the phone app. Now at least they are aware of the problem.
They called me today too. I have send them logs. At least they are working hard at this Problem. Everyone should send them logs to get this error fixed soon.
I may found the cause and workaround to prevent this bug.
Normally WiFi recognizes absence of internet connection. But in our case we're still online and I noticed some syncs still working. So DNS is coming to my mind. But I still changed my wifi to static IP using Google 8.8.8.8 DNS.
With Pie(?) Google introduced "Private DNS". I remember in MIUI 10 this feature was hidden and by default "off". On my NOTE 9S (global MI version) this setting was set to "Automatic" by default. After turning it off while dysfunctional WiFi, internet was coming back right away. After this (still) continuous connection.
The time is too short to be sure it's gone forever (*evil laugh*), but you guys could help to test.
You find the option in "Settings | Connection & sharing | Private DNS".
Good work. Continue trying things!
I switched off that same option days ago.
My 9S still have problems with wifi.
Sometimes, even switching the screen off a few minutes is enought to trigger it.
I'm still trying things, but no luck so far.
Although I've only had it for one day, I've not seen this problem yet. Wonder if it's a Wi-Fi compatibility issue or something strange?
I have noticed that I dont have problems when I am connected to a 802.11n network. The last Days I have had the Problems I Was connected to 802.11ac (2,4ghz + 5ghz). Today I was connected to an old 802.11n network and everything seems to be okay. Do you have the Problems with both Networks?
Urmelausmall said:
I have noticed that I dont have problems when I am connected to a 802.11n network. The last Days I have had the Problems I Was connected to 802.11ac (2,4ghz + 5ghz). Today I was connected to an old 802.11n network and everything seems to be okay. Do you have the Problems with both Networks?
Click to expand...
Click to collapse
Interesting. I'm connecting to a 802.11ac wifi too.
I will switch to a 802.11n one and see what happens.

Wifi Freezing

Got the Reno 2 this week to try as ive never had an oppo phone before.
The only issue i have is when browsing on wifi every now and then it will stop loading any internet pages. Its looking like it starts to try to load a page then stops and the only way i get it working again is to toggle wifi off and on then pages load fine again until the next time. Its not my internet or router as every other device i have connected never has an issue.
Anyone know of wifi issues with this phone? Its still on Android 9 as no update os showing yet. I'd rather not send it back for a refund but i cant live with this issue so id rather find a fix.

Question C,17 exports Bug ,

90 FPS Not work in C,17 in exports, the same problem fixed in C,17 CN version, I don't know what doing Realme?
60hz and 120hz works fine on GDPR
Gaming performance has been decreased in C17. While playing any game, it's overheating more and FPS is not stable.
Does anyone have problem with Wi-Fi? It regularly disconnects at night while screen is off and now it reports there's no connection during the day even when there is (for example, signal bar is full and Wi-Fi reports "no internet" but I can connect).
Xperka said:
Does anyone have problem with Wi-Fi? It regularly disconnects at night while screen is off and now it reports there's no connection during the day even when there is (for example, signal bar is full and Wi-Fi reports "no internet" but I can connect).
Click to expand...
Click to collapse
Exactly same problem - wifi connected ok, but after some time its show "No internet". Reconnecting help for short time, its keeping lose internet. Very annoying.
(Router is fine and many other devise work fine with this router. )
I kind of fixed false "no internet" reporting problem for now by restarting the router (turned it off for several minutes and then back on) although not one of my other gadgets ever reported any Wi-Fi problem with that particular router.
I still have no clue about this night (after midnight, to be precise) disconnecting problem... Interestingly, I don't recall having it on prior C.16 firmware (didn't use it much though). I had Realme 7 for over a year and had the exact same night problem that I was never able to fix so I'm kind of used to it.
Xperka said:
I kind of fixed false "no internet" reporting problem for now by restarting the router
Click to expand...
Click to collapse
Im try this, its first advise with any problem. Unfortunetly, not work for me.

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