I have been using my BB8830 for about 2 weeks now and have been having a problem staying connected to BIS. I loose my connection to the BIS but under manage connections it tells me that I am still connected (I know I have lost my connection because I can't pull up a web page or use other data apps).

If I turn off my radio and turn it back on it tells me that BIS is not connected. If I then turn the phone off and pull the battery I have BIS again until it goes out randomly. When I do this battery pull I can be in the exact same place as when it wasn't working so I don't believe that it is a signal issue. I tried a few times just reregistering but that didn't seem to do it unless I pull the battery.

I am running the following programs aside from those that are standard:

QuoteStream: provides streaming stock quotes
Viigo
occasionally google maps and BBweather

I am using the Sprint unlimited everything plan.

Does anyone have thoughts about how I can fix this or should I just get used to pulling the battery several times a day?