I'll start by saying that I won't be surprised if I don't get a single reply - I bet some of you have never even heard of this OS I have three machines on my home network; one Mac (10.12.6), one Windows (10) and one Risc OS (a nightly build from last month). I'm trying to connect to an SMB share on my Mac. I have SMB and Windows File Sharing enabled under Sys Prefs/Sharing/File Sharing/Options. I can connect from the Risc OS machine to the Windows machine, so I know that it can "reach out", and I can connect to the Mac from my Windows machine, so I know that I can "call in". However, when I try to connect from my Risc OS machine to my Mac (via Omni, "Mount LAN Manager server"), I just get "Cannot make TCP/IP connection". This happens regardless of whether my username and password are correct and regardless of which share I try to connect to. Interestingly if I enter the machine's host name into the "Server name" field then it fails instantly, but if I enter its IP address it takes about two seconds to fail. I have an entry for the machine in the Hosts file and the IP address is correct. Doing a Ping from a task window succeeds whether I use the host name or IP address. I'm running LanManFS 2.60 (which is the latest) and Omni 2.25 (there's a 2.26 available but apparently it only has visual changes). Has anyone got any idea of what to do here?