You might encounter different problems that result from an incompatible or incorrect license configuration of ESXi hosts. What to read next Unable to Assign a License to an ESXi HostUnder certain conditions, you might be unable to assign a license to an ESXi host. ESXi Host Disconnects from vCenter ServerAn ESXi host might disconnect from vCenter Server or all ESXi hosts might disconnect from vCenter Server at the same time. Parent topic: Troubleshooting Licensing of ESXi Hosts and vCenter Server