Two Win10 maschines can not find one another for SMB.

[IngwiePhoenix]

Hello there!

Just wanted to try this out to let my friend access my SMB share so he could drop some files on it for me while I was taking a break. However, neither of us can ping or reach the other. I did disable my VPN (well, CloudFlare WARP isn't "exactly" a VPN) but still no luck. I can indeed see activity, but neither sending pings nor searching the network via Windows' integrated discovery feature showed the other machine in the network.

Is there a problem we overlooked? I was hosting, thus I had 192.168.42.1 whilst my friend had -.2.

Thanks and kind regards,
Ingwie