NetBIOS Impacts Cluster Service
As NetBIOS is a legacy technology and should be replaced by DNS in LAN, we are deciding to disable all NetBIOS on all NICs in our environment.
However, we saw the issue straightaway: All AG SQL Cluster services are stopped…
Error message normally like:
We are able to bring the IP online, but not the resource itself (same pic shows above).
It shows that’s the Network Resource issue, and it’s complaining about the Name cannot be registered with DNS.
By checking the properties of NIC, I found the NIC has NetBIOS disabled, which is what I want, but SQL AG Network IP Address has it enabled…
The way to fix it:
Clear the checkbox of
Enable NetBIOS for this address in
IP Address Property:
Problem fixed! :)