To reuse an SSH connection, you should create SSH configuration file. Then, when you make SSH connection, Openssh tends to use the configuration file to help make the connection. In my situation, using Putty being an SSH2 customer I'd to change the 'Net protocol Model' under the link menu from https://kateq850qgv7.thechapblog.com/30990011/a-simple-key-for-speedssh-unveiled