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?