10-24-2007 10:04 AM - edited 03-05-2019 07:17 PM
My 2811 every so often after a power cycle just sits there with the SYS PWR LED flashing. A console shows the rommon> prompt. So it appears to be sitting in the rom monitor mode rather than booting up. If I power cycle again then it boots up fine. I am not quite sure why this happens at times. My only guess is that perhaps if I have a console cable connected to a PC that during the power cycle the console port somehow gets a break from the PCs serial port that puts it in rom monitor mode.
Any ideas as to why this may be happening?
Thanks
10-24-2007 11:07 AM
Connecting a console cable would not be causing such issues.
I think its mainly because the router is not able to read the IOS from the flash and returning to rommon
Can you format the flash and upload a fresh IOS again and check?
Narayan
10-30-2007 02:53 PM
This is most likely cause by a config-register problem. Try entering this command:
Router(config)#config-register 0x2102
This will set the config-register back to the default 0x2102. This config-register will boot the first image file in flash after checking for boot commands in your startup-config.
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