Been years since I've been on here; I'm having issues with Mac to Mac Airdrop. I'm trying to make the drop using two MBP Retina's ~1 year old. I am visible on the other computer, but I do not have anyone visible on my end. When the other computer drops something to me, he shows up, until I accept or decline, then he disappears. Both computers have bluetooth, wireless internet and visible to everyone turned on. Not sure why it isn't working now. We have been using this feature for months. Also, both computers are updated on the latest Yosemite, etc. Any thoughts?