To resolve the subject behavior:
1. Open the .pbk file that contains the entry that you dial, in Notepad.
2. Change the UseRasCredentials=1 entry to UseRasCredentials=0.
3. Save the .pbk file.
4. Exit Notepad.
NOTE: If you select the Log on using dial-up connection box in the Log on to Windows dialog, press OK, and select the correct network connection in the Network and Dial-up Connection dialog, you would not have experienced this problem.