I faced a problem with Hyper-v machines that i found them can't communicate with other machines after investgation found that the services "Hyper-V Image Management Service" & "Hyper-V Networking Management Service" not found so i uninstall the hyper-v role then installed it the problem solved but the problem i read all hyper-v related logs and didn't find any trace to know how the two services disappeared the log below for one of the hosts the problem solved in 19-10
1.Did you have this issue with all the Hyper-V host machines? yes i have this issue with 5 hosts at the same time
2.What’s the exact symptom by “can't communicate with other machines”?
the network of all machines not work and I found thier network cards in the virtual machine settings not connected , and can't open "virtual network manager"
3.Have you tried to restart the problematic computers? serveral times