Today we had found out that one of our P2Ved VM machine (win2k) having network intermittent issue. As reported by users, response time from their VM inexplicably seems unstable and from the ping command we noticed that the reply time significantly inconsistent. So, when we checked on the devices under “device manager”, we found out that there are two(2) network adapter devices as shown below :

1.VMware Accelerated AMD PCNet Adapter.

2.VMware Accelerated AMD PCNet Adapter - Teefer

One correctly identified and belong to VMware,Inc & the other belong to “Symantec”. Disable Symantec anti-virus, reinstall vmware-tools still couldn’t solve the problem. But once we totally uninstalled Symantec, out of sudden the “Teefer” device disappeared and VM network now running back to normal. So, next time it’s may worth to uninstall/disable your antivirus (network firewall) before you do any p2v & go check your network adapter devices under device manager if you are having the same issue.

Update : Same goes to source machine with M’Cafee antivirus.