The port opens after a reboot but seems to be inaccessible after a few hours
for some reason. This has just happened within the past few days, after some
reconfiguring of the firewall (didn't hear about that one), but if I can't
even connect from the server then I don't see the relationship there.
Telnet port works, 1580 works via the web from any computer but 1500 is a no
go from anywhere.

Could some external force be shutting this down?

The activity log shows no abnormality at all, just inactivity, and all
backups are being missed.

root@tsm-west:netstat -a | grep 1500
tcp4       0      0  *.1500                 *.*                    LISTEN

root@tsm-west:netstat -i
Name  Mtu   Network     Address            Ipkts Ierrs    Opkts Oerrs  Coll
en2   1500  link#2      0.4.ac.3e.62.e9       3975     0     1643     0
0
en2   1500  192.168.198 tsm-west              3975     0     1643     0
0
lo0   16896 link#1                             302     0      307     0
0
lo0   16896 127         loopback               302     0      307     0
0
lo0   16896 ::1                                302     0      307     0
0

no -a although lengthy, looks similar to this one.

Thanks,

Geoff Gill
TSM Administrator
SAIC M/S-G1b
(858)826-4062
Email: geoffrey.l.gill AT saic DOT com