No network service that specifies a gateway has been added to VMM. The network service must be added before you can configure ...

No network service that specifies a gateway has been added to VMM. The network service must be added before you can configure VM networks that will use the gateway. If your gateway uses provider software that is not included in VMM, install the provider software first. Then in VMM, click Add Resources and select Network Service. After completing the resulting wizard, right-click the listing for the gateway, click Properties, and fill in the connectivity properties for the gateway. After you complete these steps, you can configure the VM networks that will use the gateway.