the problem i have is this. i have 6510d and use it with Airtel (India) gprs.
When i use the sim card in HP, the gprs connection either just hangs (no incoming data) or disconnects in a while answering modem disconnected for unknown reason). When i use the HP as a modem thru BT it disconnects after 3-4 mins, or just hangs again (modem connection not being disrupted). Sam happens when i use HP as wirelessmodem.

I have Moto MPX220 aswell, and when i use it, EVERYTHING is fine, NO TROUBLES at all. Therefore, i come to conclusion that have no troubles with my provider and their gprs setting.

The problem is with HP, but what exactly, can't figure out. I tried everything possible. PLEASE HELP!!!