Good afternoon. I have a Domain environment with two internal DNS servers. Both running Windows Server 2003. Users are having intermittent connection errors. Occationally a computer will lose its trust relationship and need to be disjoined and rejoined. I looked at the System events logs and notice quite a few NetLogon errors on both server. A majority of the errors are 5513. Near as I can tell, non of the computers that are being logged, exists anymore, and one even appears to be a laptop that is not only non existant, but thinks it's a DNS server. Since our Systems administrator is no longer with the company and our Director of IT has been let go, it kind of puts me in a hard place, when it comes to servers. I would like to flush the dns or flush cache, but don't know what effect it will have on the users or if the server requires a reboot afterwards. Any assistance you can give will be greatly appreciated.