I have a license on my Windows 10 host that my Windows 7 VM version 15.5.7 clients use and find by host computer name. When starting the client, the host cannot be found, and it cannot be pinged from the client. If I disable, then enable, VMWare Network Adapter VMnet8, I can then ping my host and get the necessary license. This technique has worked every time, but it would be nice to not have to do this.