RRAS Authentication

Win2K Server is configured as RRAS Server with DNS, WINS and AD. Running in mixed mode. I am unable to connect to RRAS server thru a analog dial-up with 56K modem. Modem which is connected to RRAS server is autoanswering but not able to logon. User is enabled for Dial-UP access in AD users & Computers.

After connecting it stops at “Verifying username and password”. What could be the problem ?? Can anybody help me ??.

KiranKV