Remote WAN IP Change

Hey guys, I’m in the process of changing a mikrotik IP address but need to do it remotely. I’ve seen some other guys go into a special mode in the console to do things in case they dont work, but I cant seem to find that. I’m using winbox and wondering what the best way it to do this so I dont end up locking myself out of everything.

Thank you in advance.

You can use safe mode (ctrl+x)
http://wiki.mikrotik.com/wiki/Manual:Console#Safe_Mode