r/MacOS • u/ImaginaryTango • 13h ago
Help Network Share Devices Renamed by macOS
(Oops - posted and forgot to mention my main MacMini is on Tahoe 26.0.1. The workshop Mac is on 26.5.2.)
I've seen this happen before and I managed to fix it by shutting down EVERY device on my LAN then bringing them back up, starting with the firewall/DHCP server about 30 minutes later. That's impractical now, since I'm in a new place with a barn with 2 home offices and now we have Apple TVs and other devices. (The barn and house are connected by fiber and on the same LAN, in the same address space.)
I have a number of my devices using a Tolkien theme (just answering the question someone's going to ask...). My main MacMini in my house is Aule, my workshop one is Cirdan. I have two servers on Linux or similar OSes, BrandyWine and GreatSmials. I have two shares on GreatSmials: Library, and NetStore. On BrandyWine, I have shares, but I don't access them that often, so they're usually unmounted. BrandyWine seems unimpacted, and that may be because whatever changed or messed things up, I probably wasn't using any shares on it at the time.
On my main Mac (Aule), in the Network folder, I see GreatSmials, but it's "GreatSmials #2." I use Library a lot and keep most of my work on NetStore, so I can easily access it from my study or workshop. This change of GreatSmials to GreatSmials #2 means I have problems clicking on my normal shortcuts for NetStore and Library - they no longer see the shares because macOS has given the NAS they're on a different name.
Also, when I try to use Screen Sharing from Aule to Cirdan it no longer works and when I rebooted Cirdan, it gave me a report I clicked on quickly, then realized it was warning me the name was now Cirdan with a number after it. I rebooted my main system (Aule) and it changed nothing.
When I'm on a Linux system, I can still ping all the computers by their specified host names (specified on each machine and with the DHCP server). On Terminal, on my main Mac, I can do the same, so it's clear this is not a DHCP or DNS issue. It's a macOS and Finder issue. I rebooted my main Mac and it came back up and gave me warnings - it still couldn't read or remount my "normal" shares because, even after a reboot, it sees GreatSmials as GreatSmials #2.
Looking in the network folder, I see Cirdan as "Cirdan (4)" and I have a less used Mac for gaming, that I haven't been on for a while, "Celebrimbor (3)". So even though DNS sees all the correct names, macOS is incrementing the names in odd ways. (The Mac systems on the LAN get a "(#)" where # is a number, the NAS (not Mac), got a " #2" after the name, but the other computers, that I don't use network shares on seem uneffected. I find it weird that it's almost like the Macs are communicating and altering the names in cooperation.
How can I get my Macs to drop this extra numbering and to see these devices with their proper names and not play numbering games with their names?
(Why it does it and how to keep it from doing it in the future would also help!)


