Ssh failed establishing socket connection

[fzinken]

@Baldwin984

Apr 27 00:46:50 pi3 sshd[857]: Unable to negotiate with 192.168.0.197 port 63480: no matching key exchange method found. Their offer: diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 [preauth]

As @nabsltd seems your simple SSH is not supporting the latest cyphers

You have two options either:

1. enable the old one on OSMC (not recommended for security) OpenSSH: Legacy Options
2. Use an SSH APP that supports the latest key exchange protocols