The VM guests can ping each other but they can't ping not the Hyper-V host server or even the router/default gateway. The system was originally setup on a test network with a different router/default gateway where it worked, after being moved to the production network I've hit this issue.
- All Hyper-V virtual switches have been deleted and recreated.
- Internal DNS isn't working because one of the VMs is the domain controller (which again can't ping the default gateway)
- Ipconfig /all only shows the production network default gateway, not the test network gateway
- There is only one virtual NIC adapter on the Guests after the hyper-v virtual switches were all deleted and production network ones created.
- The guests are on a dedicated NIC adapter on the host, not sharing with the host
- Two different host NIC ports and cables tried
- There was original NIC teaming on the guests, but its been disabled.
- Domain firewall is disabled
- No external physical firewall currently in place
- nvspbind isn't helping, or at least I'm not seeing anything that I should delete there.
- nvspscrub doesn't seem to work on Windows Server 2016.
So the host can ping the default gateway fine, so can a laptop, if using an external DNS in the IPv4 properties they can even access the internet bypassing the internal DNS.