Can't ping, can telnet after blackout

[SteveTheGeek]

All,
I've got several SCO OS release 5 servers and unfortunately I'm not familiar with *nix OSes. After a recent 12-hr blackout one of the servers is having network trouble: the custom application it runs can't be logged into, pinging it's ip address returns no response, and telneting into it is somewhat slow but does work. Based on what I've already read I've got the following (.182 is the server in question, .70 is my workstation):

# netstat -n
Active Internet connections
Proto Recv-Q Send-Q Local Address Foreign Address (state)
tcp 0 0 192.168.200.182.23 192.168.200.70.2303 ESTABLISHED
tcp 0 2 192.168.200.182.23 192.168.200.70.2217 ESTABLISHED
Active UNIX domain sockets
Address Type Recv-Q Send-Q Conn Addr
fce28168 dgram 0 0 fce288b8
fce28798 stream 0 0 0 /usr/tmp/scohelp.sock
et
fce280d8 dgram 0 0 fce288b8
fce288b8 dgram 0 0 0 /dev/syslog

# netstat -nr
Routing tables
Destination Gateway Flags Refs Use Interface
default 192.168.200.3 UGS 0 0 net1
127.0.0.1 127.0.0.1 UH 14 0 lo0
192.168.200 192.168.200.182 UC 1 0 net1
192.168.200.182 127.0.0.1 UGHS 152 0 lo0
224 192.168.200.182 UCS 0 0 net1
# ping -n 127.0.0.1
PING 127.0.0.1 (127.0.0.1): 56 data bytes

whenever I try to do any ping from the server in a telnet session it just sits there with no response, even pinging localhost. I've already tried swapping out NICs and tested the cables and switch (even though problems with those seem unlikely to me) and at this point I'm thinking that there's probably some service or daemon having a problem. Can anyone offer any suggestions as to what to check next (and how to check it)?
-Steve

 

[SteveTheGeek]

Figured it out - the SCO license had expired on that box, re-entering the same license brought it back up completely, problem solved.
-Steve