Air Drop and File Sharing Between Macs. HELP

I have a 2011 Mac Book Pro running Mavericks and a 2010 Mac Pro running mountain lion and I am having trouble air Dropping and file sharing between them.

My MBP works fine. It can see other macs and share with them on my home network. My MP on the other hand cant see any other computers under the shared devices location in my finder. I have turned on file sharing for my MP as well as screen sharing. Neither works.

When I try to Air Drop to my MP it wont receive the item.

Has someone been through this before and know how to fix the issue? Ive been trying to research this for a while and haven't been able to find a solution.

Any help would be great!

Thanks