How are you connecting to the VM - via the MUI/virtual center console or by RDP? if by the VI infrastructure try connecting through RDP and see if you have the same issue - how many VMs fdor you have running on this ESX host? Are you experiencing problems with the other VMs?
If you find this or any other answer useful please consider awarding points by marking the answer correct or helpful
Let me know If you are facing with other VMs or not?
If there is problem with the specific VM only then there might be problem with OS of VM and If you are facing problem with other VMs also then there is problem with