Losing 3g data connectivity. - Epic 4G Q&A, Help & Troubleshooting

Has anybody else been losing 3g data connectivity? I don't have 4g so I can't comment on that, but it doesn't matter which rom I'm on, my 3g icon will disappear randomly leaving me without a connection.

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4g not staying connected

Well it looks like boston's 4g was turned on and I can connect but I lose the connection once my data transfer goes idle. Does anybody know of a way to make the 4g connection more stable? I have good signal here in allston.

Desire 2G/3G problems with mobile data

I am having issues connecting to mobile data when I switch from 2G to 3G (WCDMA). I can be connected to data via Edge or GPRS on 2G and when I switch to 3G data drops (as expected) while the phone reconnects using 3G but data wont reconnect until I power off and back on again ?
Before you ask, I switch to 2G while at home because the 3G signal is bad and the phone doesnt seem to want to switch down to 2G by itself when there is a really weak 3G signal.
Anyone else have these issues or even better any solutions ?
cheers,
Seedar.

Data works except for 3g

This is annoying me, all data connections work and only 3g won't work.
I'm using the 30_2 radio and never really noticed any problems. But right now it will take a data disable/enable to get up from 3g to HSDPA again. When the 3g icon is up it does get an IP in the 188.x.x.x range, I can see data outgoing but now it doesn't step up to HSDPA anymore it just stays at 3g with no data incoming.
Any suggestions, I'm at a loss

[Q] Grey non-working 3G after I lose wifi signal

So, I keep my wifi on mostly at all times. But I've found that when I leave my home, and get outside my wifi range, instead of naturally switching back to 3G (I usually have 4G disabled for battery purposes, unless I need speed), my 3G and bars icon will be all greyed out, and I will have no incoming data. I otherwise have a great signal here in Boston. Sometimes it will eventually start working, but other times I will need to reboot in order to have a working data connection.
Is this an issue anyone else has? It seems the transition from wifi to mobile data is glitchy?

Lost data or wifi connection when on call

Anyone else facing a problem of lost data connection during a call? It happens even even with wifi connection. I sometimes need to use the internet during a call... but the internet connection automatically disappears for the duration I'm on call. As soon as I end the call everything is normal.
When on LTE the phone automatically switch to 3G/UMTS during call (VoLTE is not supported by much providers yet).
During the switch if you're in a bad 3G area or with many people on your cell data connection is lost, the phone gives the priority to the call obviously. LTE is working very differently so that's why you can have a nice LTE data connection and without moving a ****ty UMTS data connection.
I've managed to browse web during my calls without issues on the 5T.

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