Might be that remote server connectivity has been lost ..or pls check your ip or login credentials
Password recovery
what osi layers use telnet connections for remote use
check that the login prompt on your console has changed, and use the "show session" command
Telnet
Telnet
Telnet offers no encryption, everything sent is in clear text including passwords.
The network administor must have physical access to the device to establish a console connection whereas TELNET access can be established form a remote location. However telnet access depend upon a router with network access's, whereas a console connection can be used to access the router regardless of the router's configuration.
sends data in clear text.need to configure destination device to support telnet connection.
Telnet allows clients to connect to other remote systems.
You don't. Use telnet, rlogin or ssh.
telnet
TELNET