I have a Cisco 7206 running Cisco IOS 12.2(17a) and it works just fine. When I upgraded to 12.3(3), it kept being resetted by "watchdog hard reset. The system would boot up, and I would get the "Return any key to get started" message, but after about 5 seconds the router would restart and I would get the following message:
Press RETURN to get started!
System Bootstrap, Version 12.1(20000710:044039) [nlaw-121E_npeb 117], DEVELOPMENT SOFTWARE
Copyright (c) 1994-2000 by cisco Systems, Inc.
ROM: Rebooted by watchdog hard reset
C7200 platform with 524288 Kbytes of main memory
The logs didn't show anything specific, except for the short watchdog message. So I was forced to revert back to 12.2(17a).
Does anyone know what might have caused this?
thanks in advance