This has been a long standing problem with the S5's we have, they are all on ethernet. Frequently they disconnect and I have to manually enter an IP address to re-connect them, then I'm left with a long list of the same printer in the profile and CURA doesn't tell me which is the actual one that connects and works, so I have to spend ages figuring out which ones to delete.
This has been happening for years, will it ever get fixed?