|Why is this not a networking issue?|
In your original post you said the following:
Usually, names can be resolved successfully on the apple, but when I try to resolve "scanner", the DNS server says "SERVFAIL".
As I read, and understand (correct me if I'm wrong) that statement, the mac is communicating on the network properly but isn't resolving the name of "scanner" while it is indeed resolving others.
If it is communicating properly on the network then it follows logically that it cannot be a network issue.
We have a few Mac's here where I work and they're always a problem to get working correctly in a Windows based, AD integrated domain.
If you open a terminal window on your mac and type:
and then open a command prompt window on a Windows based PC (that you know for sure is communicating properly) and type the following command:
and then compare settings you may find the answer to your problem. The only thing that should be different is the actual IP address. Subnet Mask, Default Gateway, and DNS address should all be identical. If any of those other three is different (like the DNS or gateway) then that's the problem.