Today trying to install an OS on a newly created VM i could not open the console for the guest. It kept giving an error “Cannot connect to virtual machine” and after a few seconds a screen pops up and asks if you want to try again.

Thought it was AV so i uninstalled it. That did not fix anything.

Disabled windows firewall, rebooted, still could not access the VM. I then checked and i could not access any of the other VM’s i had running.

Tried running vmconnect from a command prompt, still did not work.

Dug a bit deeper and opened up IPSEC manager and added in a rule as follows:

I gave it 5-10 min and after that i was able to open up the console of the VM.