In the sessionserver.log file many WARN messages like the following may display:

WARN  2023-01-05 12:16:15,528 [MSS Keep Alive] [c.m.c.s.s.c.a.MSSKeepAliveHandler]: Error occurred pinging MSS for user XXXXXX 
java.net.SocketException: Connection reset 

Full article: https://portal.microfocus.com/s/article/KM000013414