Here's a solution to an interesting Workstation network issue...
The issue: a Workstation Pro VM suddenly lost network connectivity. Following the troubleshooting guidelines in https://kb.vmware.com/s/article/2019836 after step 7 I couldn't login to the VM using a domain credential and got a message that a trust relationship couldn't be established. I could login using a local account. The host OS is Windows Server 2012 R2 and the guest is Windows Server 2016 Standard.
After removing the guest from the domain and then re-joining, network connectivity was restored.