I have multiple machines running on ESXI, all of them have the same problem, sometime they can access the physical network and other time they can't.
They can all ping each other in the virtual network, but if they try to go on the physical network to access either the internet or other machines it doesn’t work most of the time. Sometime after booting the vm, it doesn’t work for 10 minutes and after that everything works well until the next reboot.
They all have different ip address all of them are assigned manually. They use the correct dns and gateway.
All the guess vm are running windows XP SP2.
Do you have any idea of what could be causing this problem?