Ah, I think I see what you mean. Nautilus (gvfs actually) is temporarily downgrading the protocol for the discovery, but it's not reverting that when trying to actually connect to a discovered host. Is that it?
This does ring a bell, it was supposed to be fixed with an SRU on bionic, and in the development release back then. That SRU is what enabled this temporary fallback to smbv1 while doing discovery, and reverted when connecting.
Ah, I think I see what you mean. Nautilus (gvfs actually) is temporarily downgrading the protocol for the discovery, but it's not reverting that when trying to actually connect to a discovered host. Is that it?
This does ring a bell, it was supposed to be fixed with an SRU on bionic, and in the development release back then. That SRU is what enabled this temporary fallback to smbv1 while doing discovery, and reverted when connecting.
This needs troubleshooting.