Suddenly can no longer connect (no replies)

I upgraded to Mojave a few days ago and upgraded to version 8.0.19 of mysql workbench. Everything has been going great until suddenly yesterday even though I had already some windows open connected to different databases I started getting "Could not connect the ssh tunnel" "Access denied for 'none'. Authentication that can continue: publickey,gssapi-keyex,gssapi-with-mic"

I now that my private keys still work because I can connect via Filezilla to the servers and I can connect via ssh.

Any ideas?

thanks!