I flipped my secondary to primary and when I tried to add a different secondary, it found the secondary when I clicked add computer, however, it said "No computers with that name were found on your network. You mway want to enter an IP address instead. Do you want to continue with that name?"

So it can see the network, it just can't connect.  This confirms that the problem is with this PC specifically.

The PC is a work PC and CIO office pushes tons of crap all the time to it. Any thoughts?  I checked the firewall and didn't see anything wrong.

i don't know if this will fix it permanently, but it did for now.

https://www.tenforums.com/tutorials/6815-set-network-location-private-public-domain-windows-10-a.html

I put it on wifi, went in and changed the registry and network properties to a trusted network and it started working. I don't think it'll keep working though b\c I got it working a few times yesterday and it failed.  Hopefully I got it!

Ahh yes Multiplicity firewall settings are set so the ports are only open on private/work networks for security reasons.

You could change firewall settings to allow it on public networks too, or as you say get the network set from public back to private.