VMware vCenter Server
Network availability compatibility check is not a strict DRS compatibility check requirement for DRS to power on the VM. Meaning, if this compatibility check fails, DRS treat it as not an error but a warning and powers on the VM.
In order to force DRS to treat it as an error, reconfigure the VM and select the option 'Connect at power on' for the network adapter.
If 'Connect at power on' for the network adapter is already configured, please do the steps from Additional Information Section.
If you need to contact Broadcom Support regarding this issue, use the following steps to collect the needed information:
Select a vCenter Server instance.
Click Configure tab.
Click General and in the vCenter Server Settings, click EDIT.
In the Edit vCenter general settings window, Click Logging Settings and select verbose from the Log level drop down menu.
Click SAVE.