last Friday I loaded a bew IOS file on a 2921 router. Today, remotely, I have reloaded it but now I can't load in to the router via Telnet, SSH or CCP. Obvioulsy, I have successfully established a Telnet session in order to send the reload command; it has reloaded and now it prompts for user/password but the ones I used before are no longer valid. Any help, please?
The older version was 151-4.M4 and the new one 151-3.T4
Got the same problem when downgrading from 15.1(1)M4 to 15.1(1)M1. Any solution before trying password-recovery?