Unfortunately I didn't receive any reply. But after replacing
motherboard, the problem seems to be solved.
Here is the original post.
> Hello gurus,
> We use Lantronix (ETS16PR Version V3.5/7) terminal server as console for
> different computers. The problem appears only with Enterprise 220R machines.
> The console sometimes disappears. Usually the following scenario has place:
> I run telnet to specific port of the terminal server and don't see "login"
> prompt. I tries to send different kind of signals with no success. At this point
> if I run telnet to the computer itself I receive telnet prompt without "login
> prompt", but in 2-3 minutes the computer doesn't reply even on the ping packets
> and only power recycle returns it back.
> It happens once in 2-3 days. All other times it works fine.
> I have the following configuration for ttya:
> There isn't zsmon service running:
> "pmadm -l" doesn't return anything for this port.
> Other configurations:
> "eeprom | grep ttya" returns the following:
> "prtconf -V" :
> OBP 3.25.0 1999/12/03 11:30
> File /etc/default/kbd is different from the default configuration:
> It has been done to prevent breaking Sun computer after power recycling for
> terminal server. But the problem appeared also before that.
> The last thing I've changed was /etc/inittab file, where I replaced terminal
> type for ttymon daemon from "sun" to "vt100", but it didn't help.
> There're other Sun-250 computers, that are connected to the same terminal
> server with no problems. Operation system is Solaris-7 on all of them with the
> latest patches.
> Any ideas would be greatly appreciated.
> Thank you.
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