I have ISA installed on my DC with Two NIC cards. I always get an eror in the system event like: The DNS server for this DC does not support dynamic DNS. Add the DNS records from the file '%SystemRoot%\System32\Config\netlogon.dns' to the DNS server serving the domain referenced in that file. Dynamic registration or deregistration of one or more DNS records failed because no DNS servers are available. There is a Q267845 that talkes about this problem but i already have service pack installed. and my files are as listed below 5-4-2001 5.0.2195.2785 Dnsapi.dll " " 5.0.2195.2808 Netapi32.dll " " 5.0.2195.2865 Netlogon.dll Does anyone else have this problem??