Hi,
I'm experiencing annoying WiFi/Blueooth problems and I need your input on this one.
This is a very common one that has been present since the beginning of N4's life, but isn't present in all Android builds. I haven't found any nice, neat thread with proper info and description of the problem, so I'm posting one myself.
Specifics of the WiFi + Bluetooth problem are:
1. Bluetooth is ON, mouse and keyboard connected.
2. Wifi is ON, connected to a 2.4GH AP and being used.
3. After a very short period of time (mostly from 20-60s, sometimes upto 3minutes) the WiFi is still connected, but internet connection drops - pinging or opening a new browser page won't get the connection back.
4. Restarting WiFi gets internet back, but just for as long as in .3
5. If I turn one of the bluetooth devices off, internet immediately comes back online, but only like in .3
6. When Bluetooth is on with no devices connected everything is fine.
7. Turning Bluetooth on and connecting devices first, then Wifi doesn't make a difference (some poeple say this helps).
8. Router and bluetooth devices DO NOT matter and im am 100% sure of that - tested them with Note II with no problems.
This is obviously interference, but Nexus software/driver is bugged and won't handle this interference - won't reestablish connection when it's dropped (timeout).
My Nexus 4 info:
Android version: 5.1.1
Builds with the issue: CM12.1-20150829-nightly-mako / Euphoria-OS 1.1 (AUG 15) and previous Euphoria OS builds.
There are few apps that might be a workaround for this issue. They monitor the connection and reestablish it whenever it drops.
I've tested the Wifi Fixer app and it does work for me. So this is one of efficient workarounds, but still using internet is annoying as there are few seconds breaks in service at least once every 3mins, but mostly every 20-60secs.
LOGCAT:
I was just running continuos ICMP pinging and staring at the latency output while adb logcat was running on PC.
Suddenly, without any reason I could think of, connection got dropped and host become unreachable. I tried to reproduce this occurence, but unfortunetly it's "random" and appears without any apparent reason.
Code:
D/HeadsetStateMachine(21494): Disconnected process message: 10, size: 0
D/audio_hw_primary(191): disable_audio_route: reset and update mixer path: low-latency-playback
D/audio_hw_primary(191): disable_snd_device: snd_device(2: speaker)
E/WifiStateMachine(633): WifiStateMachine CMD_START_SCAN source -2 txSuccessRate=3.63 rxSuccessRate=4.05 targetRoamBSSID=any RSSI=-50
D/HeadsetStateMachine(21494): Disconnected process message: 10, size: 0
WIFI BAND:
Can't detect or connect to my 5GHz SSID while I'm connected to bluetooth devices.
Even if I connect to a 5GHz AP first and then switch BT on, the network will drop internet connection shortly or whole Wifi connection will drop (unlike with 2.4GHz).
I can test few ROMs, but it'd be better if I knew which specifically could work. Don't wanna waste time. I want to focus latest builds obviously - interested in Lollipop only.
So if you've came across this problem and somehow got it fixed then please share a solution.
Related
This issue really bothers me a lot after I upgrade my Atrix to Gingerbread: when I turn on the wifi, it takes up to 2 minutes for the phone to connect to a wifi hotspot. During that connecting time, in the phone's wifi connection settings, it's either showing 'scanning' or 'obtaining ip address' but with an empty wifi network list. It seems like the wifi chip is still initializing itself or something. This problem doesn't happen all the time. About 1 in 10 times, it can connect to the same wifi hotspot instantaneously. And I am pretty sure it's not the problem of the wifi hotspots because I used them before with the same phone + froyo and there was zero problem at then.
Has anyone seen similar problem like this?
Forgot to mention that I have done the factory reset several times and the problem never goes away.
I'm running the official BTU 4.3 release on my I9505
I've noticed two issues with 4.3
a) Wifi
From time to time, perhaps daily, my phone loses connection to my home wifi. I get a notification which says something about being disconnected -- don't remember the full text. When I click on it I get taken to the list of wifi networks and underneath my local wifi network it will say "Sign-in is required".
It may be working as designed - checking my newish BT HomeHub 5 I can see the PPP session recycled twice overnight. Oddly this was initiated by upstream admin according to the logs, not a vdsl failure.... since the hub will intercept pages when ppp is down it's possible this caused the confusion
b) Security policy
I sometimes see a notification that an app required access to system, but didn't have permission - yet when I click on the notification I get taken to a full list of apps -- how do I find out which one was trying to be naughty?
The WiFi problem can be quite annoying.
I think this is not an improvement over the previous functionality.
The idea seems to be that as soon you have to manually log in to a WiFi network Android switches to the cellular connection to make sure you are always connected.
The thing is that at my work place this means every time I get somewhat out of range of WiFi (elevator, toilet, staircase) and walk into range my WiFi stays disconnected until I remember to reconnect it.
I only have to actually sign in once a day, but as Android thinks it is a network you have to sign in to it will not automatically reconnect to that network.
Meanwhile the phone is using up my data allowance....
Ever since the very last update to NG5 I have had issues with bluetooth connectivity. More specifically any and all bluetooth devices I connect (full charged batteries)) have scratchy, choppy, and intermittent audio. I for the life of me cannot figure out why nor how to fix it. I would really like some assistance.
So basic details.
Device: SPH-l720t
Stock Rom: NG5
Wifi power saving mode disabled through dialer menu
Normal Wifi options selected
Wifi Calling enabled (needed because of crap signal in house)
Things I've tried:
Re-provisioning through dialer menu
Removal / reset / re-connection of bluetooth devices
Brandonr91 said:
Ever since the very last update to NG5 I have had issues with bluetooth connectivity. More specifically any and all bluetooth devices I connect (full charged batteries)) have scratchy, choppy, and intermittent audio. I for the life of me cannot figure out why nor how to fix it. I would really like some assistance.
So basic details.
Device: SPH-l720t
Stock Rom: NG5
Wifi power saving mode disabled through dialer menu
Normal Wifi options selected
Wifi Calling enabled (needed because of crap signal in house)
Things I've tried:
Re-provisioning through dialer menu
Removal / reset / re-connection of bluetooth devices
Click to expand...
Click to collapse
Does this only happen when you are using WiFi calling? Unfortunately WiFi and Bluetooth frequencies are fairly close to one another (both are in 2.4 Ghz range) and can and do interfere with each other. You could very well get interference when using both at the same time. The WiFi is going to have activity when you are on a call, and so is the bluetooth - and they're both going to be active at exactly the same time - increasing the chances of interference. The only thing I can think to suggest is to change the channel that your router is using and see if that helps.
If it's happening all the time (even when not using WiFi calling), then maybe try deleting and re-pairing your bluetooth devices.
Nougat WIFI Connection Issue - Only if the Hotspot is started using a trigger
Apologies if this has been dealt with else were or i am just to dumb to figure this out.
I am currently installing an older tablet (ASUS c7 ) in my car every thing is set up but i wanted to add a little additional feature
Feature - automatically turn on the wifi hotspot on my OPO 3T upon a trigger
Trigger - b\Blue tooth connection to my cars audio system
Firsts approach
I used Tasker and i succeeded in automating the above. onnce i get into my car and a bluetooth connection is established , tasker automatically turns on my wifi hotspot. However, my tablet could not establish a connection
Second approach
Employ dedicated apps like "Hotspot Starter" to auto start wifi hotspot upon a bluetooth connection. As above a connection could not be established also
Problem / Troubleshooting
The ASUS tablet is unable to connect status messages like connecting...., something about IP address, disconnected... The cycle then repeats
However i noticed that if i manually turn on the wifi hotspot, the tablet connects with out any issues.
This has led me to believe that the issue is related to the process of automating through a trigger the switchin on off the hotspot
Other troubleshooting steps
- Attempted the use of static IP address - unsuccessful
- Attempted to connect to hotspot using another device (OPO 1) - unsuccessful
- factory reset - unsuccessful
- rooted device - unsuccessful
Has anyone experienced this?
Any help will be appreciated
Wifi Hotspot source - OPO 3T
Other devices used to connect to the hotspot with no success - ASUS Zenpad C7 & OPO 1
I have had my US996 v20 for a couple months now and noticed that websites and apps were having trouble loading pages. I was able to verify via terminal editor and ping that I am losing somewhere between 6 - 20% packets, this happens on multiple different wifi networks.
Today I decided to try disabling the BT and see if that had any effect. To my surprise I stopped dropping any packets. Is this a known issue with this phone? My BT wasn't connected to any device so I don't think the BT radio should be communicating with anything.
I narrowed it down to the bluetooth OBD reader in my car. I'm still not sure why it was causing wifi issues but since it was always powered even when the car was off, and most of my day I'm within range of my car, it was causing the wifi issues almost all the time. When I unplugged it, suddenly I stopped seeing high packet loss.