I recently replaced my small business's old Cisco switch with a managed FortiSwitch. I did the requisite rejigging of network interfaces on our gateway (FortiGate) to set things up as "one big switch" - as was the case with the Cisco.
All physical hosts can talk to each other without issue, including communicating with a number of virtual machines I have hosted on our Primary and Secondary (Windows Server 2016) domain controllers. My issue is that the (Hyper-V) VMs themselves can't ping their host servers (they can ping each other though). Interestingly, one VM on one host can ping the other host (of the other vm's).
I feel like this would have to do with how the Virtual Switch is configured, however, I haven't changed it from default external setup.
Windows firewall has been turned off on host servers and virtual machines.
What am I missing here? Any help would be massively appreciated.
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