Our Primary DNS server of 10.10.15.100 will not resolve. All workstations are using 10.10.1.106 to do name resolution. We are only on one domain. The DNS servers are using their own IP's as the primary DNS server in their network settings. I can't figure out what is going on here. Our Network Administrator is no longer here and I've been given the responsibility to resolve the DNS issues. I'm sure you may need more details but at this point I don't know what other information you will need until you ask.
Thanks for any help you can offer!!!