I have SBS2011 network and no one can open this website https://www.kuebix.com
I can open this website from any computer from outside of our network.
in SBS2011 DNS Manager, I don't have any DNS servers listed so that it uses root hints.
We do have a backup DNS server on the same network and each workstation PC has two Name servers: 192.168.1.10 & 192.168.1.11 for example.
Where do I begin troubleshooting this?
No one has reported the same kind of problem before.