We have an SBS 2008 server that seems to be having a issue resolving only one domain (www.sapbasisworld.com
to my knowledge)
We were able to access this site last week, but DNS server is not able to resolve for the last 2 days. We use forwarders and I have noticed the 5504 error for one the forwarders.
This looks like an issue with one of our DNS forwarders.
I have cleared the cache and restarted the DNS service.
Any advice on what I should be focusing on or identify the faulty nameserver.