Michel,
thanks for getting back to my problem!
From my point of view the local intranet settings are ok - short names, FQDN of the aliases and the server name are entered within the local intranet zone.
I've done the following on the EV Server with IE:
1st try:
http://192.168.96.75/EnterpriseVault/ > I get the login box > I enter my credentials > I get the Website
2nd try:
http://evserver1/EnterpriseVault/ > I get the login > I enter my credentials > I get the login box >3 x > HTTP Error 401.1 - Unauthorized: Access is denied due to invalid credentials.
3rd try: When I disable Windows Integrated Authentication I get the login box once and everything is working I get the Website (trust host for delegation is enabled)
4th try: When I only enable Windows Integrated Authentication - smae problem as in 2nd try
It looks like something with Windows Integrated Authentication is going wrong.
Robert
PS: Domain Environment is Windows 2008 R2, EV is Windows 2003 R2 and Client Windows XP