Hi, I have a server 2003 with a fairly strange occurance going on. Each night the servers DNS lookups revert back to prior entries that are wrong. I can manually clear the cache and then the email and site lookup works. However I need to find out what the root problem is. The Security log gives an error each night with a login attempt by a blank user. I have run malwarebytes and several online virus scans, no threats found. Any ideas to troubleshoot the issue would be appreciated.
Thx
Thx