Data Connection lost Frequently on TP2 PLEASE HELP!!!

[aha_neo]

I have a unlocked Sprint Touch Pro 2.
I have configured the ATT data connection on it and have Mighty's latest ROM installed.

I am observing that the data connection works for 10-15 mins but is automatically lost after that.

I am no longer able to use gprs for browsing, google maps or activesync.

Does anyone know how to fix this issue.
This thing is major pain for me as I am not able to make use of the data connection

This issue is fixed for 10-15 mins after every reset.

Someone PLEASE HELP