VM intermittently losses connectivity after reboot or vmotion

Hi,

I have a weird issue with one of my clusters where the VMs will lose internet connection after a reboot or vmotion.

It happens randomly on all the VM's in the cluster.

The way I usually fixed the issue are by using one of the solution below:

1. Disable the VM nic for 30 sec and re-enable it
2. Delete the VM nic and re-add a new nic
3. Change the NIC vlan and change it back to the correct one
4. Move it back to the host before the Vmotion

I've tried to reboot all the ESXI Host in the cluster but the issue still persists.

Any idea what to check?