I have problems to sync a Nokia E50 over USB (local) with GMS 2 SP3 on
Windows Server 2003

I have used the installer from the GMS-Server url: serverurl/install an
install the Symbian Series 60 3. Edition Client

I put in username, password and URL of the server but I cannot connect

In the phone displayed authentication failed

When I sync any Windows Mobil devices over USB it works well!

Could anyone help me?

Facts of Desktop PC

Windows xp SP2!
Nokia PC Suite
No Firewall active!