Connection Dropped in windows 2003 server

I have two lan cards connected one for the internal network and the
other for a T1 connection i get the internet with T1 connection and the
remote access via pc anywhere and RD. The problem that i have is:
I lose the remote conecction with bith software i check the riter settings
and the routing for this ports looks good. I dont lose the internet
connection in the server only the remote access. I check the land cards
configuration and looks good to.

Can somebody help me with this.