Arafel wrote:I don't think the issue is bonjour related specifically but with connecting via device name. Bonjour sees it, then when you try connecting it will disappear when it is not able to connect. Bonjour uses the device name such as "afp://NAS" or "afp://AFP%20on%20NAS._afpovertcp._tcp.local" is the actual connection mine used. If you try to manually connect via device name it will not connect either.
FYI that again further confirms the issue is bonjour related
For Mac connectivity - be it for share access or TimeMachine - there are 2 services involved: the AFP file server which is implemented using an application called Netatalk, and the Bonjour service implemented by the application Avahi
The AFP server (netatalk) has no involvement in the name to IP address resolution - that is totally the function of the bonjour server (avahi) which provides different advertisements for normal shares vs the TM service (your example is the name used to advertised normal share access only and not TM, and the fact that it "disappears" suggests the ip address is not being resolved correctly)
The only way I can think of to fix this (if Netgear cannot reproduce and given @awperk has shown resetting the TM service does not fix the issue) is to check the actual avahi configuration files of one of the failing units, and to get that to happen you would be best advised to log an official support case with Netgear as @mdgm suggests