Network Programming in .NET

When trying to connect via GIT to BitBucket from an older server, I got this error;
fatal: unable to access xxx : gnutls_handshake() failed: Handshake failed

After updating GIT, CA root certifiates, rebooting the server, nothing seemed to work.

Then I did;

Get the SSH public key as follows;

cat /home/ubuntu/.ssh/id_rsa.pub

Then log into bitbucket, and press the settings cog in the top right, then “Personal Bitbucket settings”, then SSH Keys, 

then paste in the public key from the result above. 

Once added, you can do;

git clone git@bitbucket.org:XXX/XXX

Hope this helps someone!