[Pharo-users] Configuring iceberg on Windows

I followed the tutorial and provided IceCredentialProvider with ssh settings, also put the same settings in Settings-Tools-Software Configuration Management. It seems not to have any effect since when I try to create a repo using SSH it gives the error "Failed to connect to github.com". I need to get past that error since I get it even when I install Moose via Metacello. Do I need to add ssh-agent as well? If yes, why do we need to provide public/private key paths with IceCredentialProvider?