AT&T WWAN Hangs

[joshrivers]

I'm hoping somebody can spare me a clue. Will pay in happy praise.

I've been having a large number of connection hangs on my MC8775 HSDPA connection. The connection will simply stop transmitting or recieving data. I am unable to disconnect, turn off the radio, or otherwise restore the connection. The only solution seems to be a complete shutdown of my T61p and then a reboot. I'm running Vista x64 SP1. I had the problem using Access Connections and switched to the Sierra Watcher and still find the issue recurring. I've seen tell that a similar issue was resolved with a firmware upgrade for the PCMCIA cards, but I can't find a newer firmware for my MC8775.

I'm currently running Watcher R3.1.0.6, Driver R2_0_9_0, Device rev 1.1, and firmware rev H1_1_9_3MCAP.

Any help would be very much appreciated.