Help Data Connection Issues

[tweak4]

I've got a weird issue- anyone run into anything like this before?

I live in a 4G area, but I work in a 3G and since I have wi-fi at home, I usually just leave the phone in CDMA mode.
When I get home, I flip wi-fi on and all is well.
However, when I leave for work in the morning and turn wi-fi off, my phone refuses to connect to 3G until I reboot it. I get 3 or 4 bars in the signal indicator, as well as the 3G icon, but it is all in gray (instead of blue), and no apps can access data. However, once I reboot it seems fine.
I don't think it has always done this, but it has ever day for the last 2 weeks at least.
That said, I can't be sure the problem comes from having wi-fi on (as I can usually turn it on for short periods and everything is fine when I turn it off again), or from having it plugged in overnight or something else entirely. It's correlation, but not necessarily causation.

Phone is unlocked and rooted, but otherwise stock.

 

[Sandroidfan]

How long does it stay on gray 3G bars until you gave up and rebooted? Have you tried toggling airplane mode or mobile network?

Also you don't have to flip WiFi all the time. I normally just leave WiFi on with 3G mode and it seems to hand off fine between two as I move around.

 

[tweak4]

The most I've let it go has been about an hour. Toggling airplane mode or mobile network modes doesn't seem to fix it.

I'm not sure that turning the wi-fi off actually triggers this problem, I'm just in the habit of turning it off on the way to work, and that's when I also notice that I have no data connectivity.

Also my office has a wireless network that is protected by a web portal (which I don't have the password for) rather than WEP/WPA/etc, so if I leave wi-fi on, the phone will try to connect to the network, but then it can't use that connection to access the internet. It's easier just to disable wi-fi so the office network doesn't mess me up.
thanks

 

[Sandroidfan]

The most I've let it go has been about an hour. Toggling airplane mode or mobile network modes doesn't seem to fix it.

I'm not sure that turning the wi-fi off actually triggers this problem, I'm just in the habit of turning it off on the way to work, and that's when I also notice that I have no data connectivity.

Also my office has a wireless network that is protected by a web portal (which I don't have the password for) rather than WEP/WPA/etc, so if I leave wi-fi on, the phone will try to connect to the network, but then it can't use that connection to access the internet. It's easier just to disable wi-fi so the office network doesn't mess me up.
thanks

If you don't enter and save the password for WiFi access point in phone, it won't connect to phone even if it's close. I set my WiFi radio to sleep for screen off and stay on for screen and plugged in too. but I get that everyone has different habit, usage pattern on WiFi.

Maybe you could be in an area affected by VZW expanding 4G recently. There is thread for connectivity issue from that.