I will see what happens when I change
From: CHGTELNA TIMMRKTIMO(*CALC)
To: CHGTELNA TIMMRKTIMO(60)
I read the CHGTELNA help text and this long IBM document:
The Session Keep Alive parameter specifies the number of seconds
between session validation.
KEEP ALIVE is a poor term to use for this mechanism because it is
This mechanism does not keep a Telnet session alive. It is a probe to
detect when a Telnet session is dead. Dead client timer would be a
*CALC IS APPROXIMATELY 600 SECONDS OR 10 MINUTES.
The changes take effect the next time the TELNET server is started
the Start TCP/IP (STRTCP) command or by the Start TCP/IP Server
Note: The CHGTELNA command parameters are used by the TELNET
server only; they are not used by the TELNET client. Many of
these same parameters can be set for TELNET clients using the
Start TCP/IP TELNET (STRTCPTELN) command or the TELNET client