Need help with NT4 workstation NETLogon?

[tchinhe]

Whenever I logged on it will tell me the Domain is not available to authenticate, signing on with cache. My Domain controller is on and I seem to be able to map my drives onto the domain controller and access it. I don't know what I changed and it was like 10 days ago since I last reboot so I can't remember. I know I am playing with Directory Replicator but doubt that might be the cause. Thanks for your help, I hate to reinstall this thing.