[TexanFeller]

I used to get that constantly when I was backing up to a Synology NAS. I switched to an ASUSTOR AsusFlash NAS connecting over SMB and haven't had a single problem since. New NAS is M.2 based and can easily saturate its 10gbe link.

Side note, Synology is dead to me. Synology became consumer hostile with trying to force you to use their drives, they don't have good small scale M.2 options(at least as of last year when I upgraded), and their stuff doesn't even work for me reliably.