Password recovery
To remotely access a router's CLI session, you can use protocols like SSH (Secure Shell) or Telnet. SSH is preferred due to its encrypted connection, providing better security for remote management. You can use terminal emulation software like PuTTY, Tera Term, or command-line tools like OpenSSH to establish the connection. Ensure the router is configured to allow remote access and that the necessary ports are open.
SSH
The obvious answer is that the remote router is switched off !
Theoretically you can, but you need to know the code for router's software. Because you will have to modify it manually. It's very far from a simple task and cannot be performed even by advanced users.
To enable direct remote access to a router via a modem, the console interface is typically used. The console port provides a direct connection for initial configuration and troubleshooting. Additionally, if remote access over the internet is needed, the router's WAN interface can be configured for remote management using protocols like SSH or HTTPS, but this requires additional security measures.
view current router configuration
ANDing is used by a router, to see if the host which has to be contacted, is on the local network of the router, or a remote network.
router
remote server
If you are using public or not protected network your session can be hijacked and used to harm your privacy.
By default wireless routers block all incoming connections. You need to to open the remote desktop port on the router. And also you might have to setup redirecting of incoming remote desktop connections on a particular pc.
Default gateway