I can't even telnet to the router. Not the reverse telnet. But the moment I remove it and say, 'exec', then I can telnet and login to the router.
With 'no exec' when I go to DOS prompt and telnet, it tries to telnet, and it is suppose to prompt me for the username (because in line vty, I say, login local, and I give a username and password in global mode) but nothing prompts and the screen closes in a few seconds.
Yes the router is functional. And it has exactly the same IOS as the other one which is working without any problems :(