I have a W2K ADS domain and another W2K Server with Exchange 2000 in my lab. Three / Four workstations, two XP Pro, one W2K Pro and a W98se. I can browse the W2K domain from both the 98 and W2K workstation. When I want to browse from the XP workstations I get very often the message that I am not having the proper authorisation to browse the network.... ??? I can still map the shares and such through the login script and from the command prompt. I can see the shares through net view and I can detach and attach from the domain. Server to server browsing works just dandy too. I was thinking of WINS, but I need that for the one W98 system, although I am strongly thinking of disabling WINS. I have checked DNS, reverse DNS etc. etc. it works properly. One other thing I noticed is that I am able to browse from all machines when the system is rebooted. I also looked suspicious at the netlogon service, but it all works fine as far as I can see. anyone got a clue where to start?