Cannot connect to network share (via CF tunnel)

I have successfully created a tunnel to a Ubuntu (20.04) samba share. I can connect to this share via Warp on a Win10 laptop, but cannot connect from a Win10 desktop (AzureAD connected machine). I keep getting:
“Windows cannot access … \ipaddress\share
Error code: x80070035
The network path was not found”

As far as I know, both machines are set up the same with regards to Windows options. The only difference I am aware of is that the desktop is tied to AzureAD and the laptop isn’t.

Any/all help would be greatly appreciated (I have been working this issue for weeks…)!