[Q] wifi, mobile data, Bluetooth problems - Android Q&A, Help & Troubleshooting

Hi
Last week my phone (rooted Motorola RAZR i running the stock T-Mobile UK rom ) developed these problems:
1. WiFi - within a few hours of no use, WiFi indicator goes from blue to grey; which apparently means "not connected to Google services". This apparently means that gmail syncing, etc doesn't work, but other non-Google internet stuff should be fine... but in my case this was not the case, ie all internet connectivity was down.
2. Mobile data - same issue a WiFi; that is no use, indicator blue to grey, no connectivity.
3. Bluetooth - no audio for calls, but music is fine. When i call someone via Bluetooth headset, i can't hear their phone ringing or their voice once they answer.
So it seems that each radio loses partial functionality. I say partial because WiFi and mobile data both still showed me connected, despite not seeming to function at all. The issues occur separately. Each issue can be fixed by turning the relevant service off and on again. I haven't installed any new apps recently (that i can recall).
I don't expect anyone to diagnose the issue(s) (they seem related), but could i would like some advice regarding how to debug the problems, eg tools, logs, etc that might help me see what's going wrong.
TIA.
Colin

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Ok... I have been having the most bizarre wifi issue with my HTC One S. I have had this issue before with another phone. So it might not be the phone....it could just be my wireless router.
The problem is that I have no problem whatsoever connecting to wifi... But connecting to wifi, and getting data throughput isn't everything one needs.
When you connect through the wifi, you still need to connect to one or more of the following: (I) the mobile network riding over (or encapsulated in) the TCP packets, (ii) you need to connect to the Google network (or this may just be part of your data connection) in order for G+, gmail, talk, etc. to work.
On a great old CM7 theme I once had, the status bar was SO helpful because while the wifi was connected, I would see the wifi icon fully filled and white. But when it actually connected to the network, it turned blue
I looked around for something like this, but to no avail. Anyone have an idea how to change this or find a mod for it?
Sent from my HTC One-S (rooted), stock ROM

[Q] Battery drain WiFi related

ZTE Grand X In, Android 4.0.4.
Google Talk services are draining battery, that seems to be known problem. But, this issue for this topic is different one.
I checked Better Battery Stats, Better WiFi. Seems that wake related to wifi is the main issue many times.
The problem is - when I have WiFi hotspot, good signal, got connection, but do not get network access (needs to be authenticated), all of that in background (no alert, no visible action on screen). So, on WiFi screen I can see connected, but actually I did not get network access, so all services which need network access (including Google services) are simultaneously trying to go to network, to get updates or any other data and - that is draining battery heavily - access to network is not existing.
Anybody experienced this? How to fix this issue?
So, connected to WiFi hotspot, very good signal, the WiFi is connected.
No network access (WiFi needs to be authenticated), all of that in background (no alert, no visible action on screen).
For example - trying to reach 8.8.8.8 - Google DNS does not work
Phone is rooted (just to say that - I may install any application that would be helpful, also, access to configuration files available).
What needs to be done? Which parameters are to be reconfigured?
How to control the number of attempts Android is doing from different applications to access network resources?

[Q] Connection issues

Hey everyone, I got myself a Z2 recently and have been very happy about it for the most part. However, some things seem to not function a 100% the way it's supposed to.
Some times after it's been to sleep and I try browsing online with it using either 3g/4g or wifi the phone says it has a connection, but nothing loads. All I have to do to solve this is to refresh the wifi/3g connection manually, and then it works. It's rather annoying to always go through that procedure every time I want to use my phone, so I'm wondering is there anything I can do about this? Or anyone experienced anything similar?
Vegard
I have the same issue with WiFi while the phone sleeps or is active (no probs with mobile data though!), but I was not able to determine whether it's my router, the phone, or a combination of the two (though I have a hunch).
When I'm in my room which is unfortunately the farthest from the router, and the connection drops, my Z2 is not able to reconnect on its own. Have to disable/enable WiFi or else it's stuck in an infinite loop of connecting and obtaining an IP.
Now, I'm fine with a dropping connection occasionally given the distance and the... quality of my router. However, my laptop is able to reconnect automatically.
I have tried lots of possible solutions: WiFi sleep policy, static IP or DHCP, disabling/enabling WiFi optimisation or Auto-IP, switching WiFi channels, and various WiFi fixer apps. Nothing worked.
My guess? There is a bug in the stock firmware that makes the phone unable to reconnect if a connection is forcibly dropped . Pair this with a crappy router and you have a recipe for inconvenience.
Unfortunately, I have no spare router to confirm this, and with the bugs in CyanogenMod I am reluctant to flash for now.
Also, I am sure this is not a hardware fault of the phone in my case since I notice this behaviour at home in my network only.
Do you guys possibly know where I could find some logs related WiFi? I wanna get to the bottom of this.

Data (Wi-Fi AND Mobile data) issues

Ever since I received my OPX I had little problems with my data, independently of using Wi-Fi or mobile internet (2g/3g).
It started with the fact that in the installation of the phone it couldn't connect to verify it's connection, although wifi was connected correctly.
I started it without the connection it wanted and factory resetted it and then I got the same problem, but after a few minutes it worked correctly and I could install my phone without any problems.
Now when I work with my phone (Whatsapp, 9gag, webrowsing, video streaming) it sometimes stops with loading, like it has lost its connection, but both Wi-Fi and mobile internet are connected.
This is very frustrating when watching video, since it just won't buffer anymore and I have to wait for like 1 minute before it continues and reloading the page helps most of the times, because I then force to get data.
Sometimes when WhatsApp isn't loading/ keeping it's connection I just start a SpeedTest to ensure it has an open connection. This works most of the times.
Also WhatsApp Web keeps losing its connection while the screen is on.
I hope you guys have some ideas on this subject.
I have a similar issue. In my case the device seems to have problems with certain WiFi-Networks (at university to be precise). The connection with the WiFi is still there, but there's no actual connection to the internet sometimes. That's why your mobile data doesn't activate - there are no connection issues on mobile data for me.
The cause for this is probably the lack of a 5GHz WiFi antenna. I don't know why, but my OPX cannot handle the 2.4GHz WiFi at university (at home it works fine!).
So to test this out, you should try different WiFi-Networks. If the network is 2.4GHz only, it should be working.
The WiFi thing while setting up the phone is a known OxygenOS bug and can be worked around.

Bluetooth contact sharing on My_Radiosat Renault - CM13 6.0.1

Bluetooth contact sharing on car radio - CM13 6.0.1
I'm having trouble with my S2 connection with my bluetooth car radio.
Everything is working well, with the exception of "Contact sharing"!
If I have this option enabled on pairing, the S2 disconnects after approximately two minutes, and can not make the turn up again until I turn the car off and on again, and repeat!
If I do not activate the "Contact sharing" on the pairing, then the Bluetooth connection to the radio does not turn off and can receive and make calls by mobile phone, but do not have access to the phone book of the phone in order to call the radio commands!
Has anyone had this problem and know how to solve?
I've narrowed the list of phone numbers for 3 only to be easy and fast to sync, but can not sync!
However, with radio commands, can access the historico of dialed, received and missed!
I think the problem is related to the lack of permissions than those asked!
I have the impression that this feature was already running an earlier CM13 ROM!

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