Hi! Can anyone tell me, where can i change Windows 7 authentication's mode from Kerberos to NTLM? In my company i have installed Windows 7 Professional ( 32 bit ) and it is joined to a domain. Our proxy server is using NTLM authentication, but if i turn on my Windows 7 PC, then i don't have internet connection for about 10-15 miutes. After this 10-15 minutes it is working fine. As far as i know, this is because Windows 7 is trying to authenticate first with Kerberos, and only after that it is trying with NTLM authentication. It is very annoying, so if it is possible i want to try what happens if i change the authentication from Kerberos to NTLM, but i can't find it. Thanks, kampi