I have a 1721 router here that the register is set to 0x2104, but it is currently password protected. When I power it up and try a CRTL-BREAK I am not getting prompted to ROMMON mode to clear the password or change the confreg.
Configuration register is 0x2102
But i am now getting an error message
Mar 1 00:10:47.183: %SYS-4-CONFIG_RESOLVE_FAILURE: System config parse from (t
Did you mean to set the value to 2142 and not 2104?
Routing and Switching
It was in 0x2104 and I was getting the above. I was able to figure out the password because it was an old router of ours and able to change it back to 0x2102, so essentially 0x2142 was not needed.
But for it to be initially in 0x2104, it is still password protected and it will not allow me to CTRL+BREAK and I was getting all sorts of crazy messages