First let me clarify the client could see the peer server over the network. Not sure about the client being seen by the server.
Also server is running w10 pro as I believe is the client.
I can't remember if the server could see the client.
Both units had an ip address provided by the router.
DNS client, fdrp host and FDResPub, and UPnP device host were set to run automatically delayed start. Not sure about SSDP Discovery.
We checked allowed apps also while we were there if i remember correctly Network discovery was allowed. I cant find the sheet i was working with on allowed apps, however I remember I allowed obvious network protocols .
I did notice Peer Name resolution protocol PNRPSvc, and Peer Network grouping P@pSvc would not start because it was unable to access a key required dependency for start.
This occoured even after reboot.