About data connection after WiFi off - Redmi Note 2 Q&A, Help & Troubleshooting

Hi all, I have encounter this problem since 2 month ago.
There's a way to reproduce it:
Turn WiFi on and you have to connect to any router, then you can keep data connection on.
After 30 min to 1 hour, turn off WiFi. Now data connection should working, but in my case, I can't.
Thought the data connection is enabled, it just unable to connect to the server...
I have to enter "test mode" to turn off Wireless connection and turn it on again to fix it.
Or to turn on/off airplane mode to fix this issue.
However, I've seen no one complain it here.
Is there anyone have this issue and how to solve it?
P.S I've tried all the ROM and Modem from v24p37 to v24p50

Related

[Q] Wifi won't reconnect

I am having a problem with my Wifi.
When I try to connect to a wifi network, and the first time it connects fine, and stays connected.
But if I leave, or disconnect, then it won't re-connect ever again. It spends about 2 minutes searching/connecting and then I get an error message saying:
"Attention
Network Disabled. Poor Connection
cancel retry forget"
I have tried rebooting, wiping the cache, forgetting all my wifi connections, turning on/off airplane mode.
[Edit] I have 3 wifi routers at my office and the problem has happened with all 3.
I think I've tried everything except a factory reset.
anyone else having the same problem or a solution?
-Tm
VZW Galaxy Note 2
I have the same problem. I've only seen it work once.

[Q][Help]Wifi only works 3 meters away from router

Dear All ,
I have been suddenly encountering wifi connection issues with my S3.
It refuses to connect to any router unless i am very near to it.
There is no problem with reception as the phone can detect the wifi and has 3-4 bars
If i try connecting while far away from the router to a detected network, it just gets stuck on "connecting.."
If i connect while near the router and then walk away, remains connected but I have no internet access..
Things I have tried:
1-cycling wifi on/off , reboot phone, reboot gateway
2-turning off wifi power saver from service mode *#0011#
3-flashing a different non stock rom after doing a wipe/factory reset.
4-searched extensively for three days with no avail
If any encountered such a problem before and was able to solve it, your help is highly appreciated.
marwanhamed said:
Dear All ,
I have been suddenly encountering wifi connection issues with my S3.
It refuses to connect to any router unless i am very near to it.
There is no problem with reception as the phone can detect the wifi and has 3-4 bars
If i try connecting while far away from the router to a detected network, it just gets stuck on "connecting.."
If i connect while near the router and then walk away, remains connected but I have no internet access..
Things I have tried:
1-cycling wifi on/off , reboot phone, reboot gateway
2-turning off wifi power saver from service mode *#0011#
3-flashing a different non stock rom after doing a wipe/factory reset.
4-searched extensively for three days with no avail
If any encountered such a problem before and was able to solve it, your help is highly appreciated.
Click to expand...
Click to collapse
I haven't encountered this specific problem before, but I have had other problems with my S3 and WiFi. It turned out the problem was my router, which was in 5ghz mode. If you have a 5ghz router, try to switch it to 2.4ghz.
Something else you can try is to change your modem and/or kernel. Those 2 both have something to do with WiFi, so maybe it'll work.
Again, I haven't encountered your specific problem myself, these are just some suggestions.
Sent from my Galaxy S3 with Tapatalk
marwanhamed said:
Dear All ,
I have been suddenly encountering wifi connection issues with my S3.
It refuses to connect to any router unless i am very near to it.
There is no problem with reception as the phone can detect the wifi and has 3-4 bars
If i try connecting while far away from the router to a detected network, it just gets stuck on "connecting.."
If i connect while near the router and then walk away, remains connected but I have no internet access..
Things I have tried:
1-cycling wifi on/off , reboot phone, reboot gateway
2-turning off wifi power saver from service mode *#0011#
3-flashing a different non stock rom after doing a wipe/factory reset.
4-searched extensively for three days with no avail
If any encountered such a problem before and was able to solve it, your help is highly appreciated.
Click to expand...
Click to collapse
I'm having the same problem for about 2 months now, it's driving me crazy, if anyone knows how to fix this please let us know! Thank you in advance.
AS the guy above you suggested try changing your modem and if that fails try a new kernel which should sort out the problems you are having. Or as he also suggested try your router and make sure it isnt in 5ghz mode only.
Try logging into your router's configuration and changing the wireless network channel from auto to a manual setting (e.g. 9 or 3). The only wifi problems I ever had with my S3 were (misconfigured) access points and routers.

WiFi only reconnects after manually reconnect to network (logcat)

Hello,
Every known wifi network I walk into, I get an wifi connection failure and my phone does not get connected. After going to the wifi network settings and manually choose connect, there is no problem...
Also overnight, my connection get lost and when I wake up I have the same error. I have to do the same thing (manually connect to my known wifi network(s).) before I can use it...
Deleting the network and adding it again will not solve the issue. I have attached the logcat. I also have enabled extended wifi logging for the logcat.
At 16.21 I enabled wifi and it does not connect
At 16.50 I manually connect to the network
Does anybody know what's going on?
Thnx!
Another logcat during night. Somewhere I lose my wifi and my device won't reconnect.... I gave to manually choose reconnect on the known wifi.
I already deleted the data in data/misc/dhcp and data/misc/wifi and removed all the known networks and start adding them.
Already did a full wipe (factory) reset with no results..

Huawei Y360 U61 Wifi Keeps disconnecting

My phone wifi remains connected for 2/3 mins.I can only access internet for couple of mins,after that although wifi shows connected but I don't have internet access.
But I simply cant reconnect again.After I disconnect and try to connect it says connecting and then nothing happens.
The only way I can get connect to WiFi is by turning off/on airplane mode or restarting device.
So in Short
I am able to turn on WiFi and see available WiFi but cannot connect.
After I turn off/on airplane mode I cant connect to WiFi and I get internet access for like 2/3 mins and then again airplane mode thing.
About my phone
It has WiFi NVRAM and IMEI errors.Whenever I reset I have to remove the error by replacing files( https://forum.xda-developers.com/showthread.php?t=2730486)
I have the exact same problem with the same phone. Except the NVRAM/ IMEI errors, I don't know what those are.

WiFi Reconnection issus

Anyone else having problems reconnecting to a WiFi connection, or even seeing WiFi SSIDs after disconnecting from WiFi?
This happens to me intermittently. I have 5 WiFi SSIDs in my house. 2.4G and 5G from the FIOS router, and the same from a WiFi access point on another floor at the other end of the house, and a Guest network from the AP. I can normally see all of them from any point in the house, as well as half a dozen from nearby neighbors. And my s9+ normally connects, automatically, to my primary 5G connection without any problem.
But occasionally, after being out and coming back home, or after the phone has been asleep for a while, it won' see any SSIDs. Not mine, or the neighbors. I've tried scanning for WiFi networks, turning WiFi off, waiting a few, and turning it back on, but it doesn't see anything, and won't connect. I've even tried manually inputting the name of one of my access points, but the phone won't find it.
Turn on WiFi automatically is on, WiFi power saving mode is off (although I've had the same issue with it turned on), Keep WiFi on during sleep was set to While charging. I've changed it to always, but it will be a while to see if that helps.
The only way I've found to get it to see WiFi networks again is to reboot the phone.
Oh, and other devices, including other Android phones, see all the SSIDs without issue.
Any thoughts or ideas?
I have te same issue here, I can't find a fix.
Mine will not connect to mobile date after I turn my wifi off. I have to reboot the phone in order to be able to make a call or use data. It all seemed to happen when a pop up came on to enable wifi calling. I can't figure out how to turn that off.
I don't have acupp1's issue with mobile data, but I seem to have resolved the WiFi connection issue by not letting the phone turn WiFi off during sleep. Haven't had the problem since I changed that setting.
I got the same problem since I rooted
Been trying to figure out if its a VENDOR Firmware problem or what. I do know that every developer says its a bug with the s9 when rooting. I've personally watch the live log on TWRP when flashing and seen where it mounts the VENDOR Firmware and then unmounted at the end. So it could possibly be a problem between TWRP and the s9 ROMs idk know exactly yet but I'm looking for a solution also. But I'm going to try what you did with your WiFi then report back here.

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