same here :
Hello, I am looking for the updated FileMaker Server 12 Error list.
Customers logs mention e.g. error 10 and 51, these were not mentioned in FMS 11.
Decscription : xx no longer responding; connection closed .(10) or (51)
txs Reinier Pahladsingh
Bump please. Not finding anything about (10). I found (51) is disconnection due to server not getting tickles from client, over a period of 120 sec, where client should tickle every 60 sec. Source: http://fmforums.com/forum/topic/91126-client-no-longer-responding-connection-closed-51/