Have you confirmed that this guest is on the correct Portgroup on the vSwitch, remember that ESXi is based on a Unix OS and vmnetwork is not the same as VMnetwork.
Also confirm that the vLAN IDs are the same too.
Have you confirmed that this guest is on the correct Portgroup on the vSwitch, remember that ESXi is based on a Unix OS and vmnetwork is not the same as VMnetwork.
Also confirm that the vLAN IDs are the same too.