Cant seem to file share between cloned drives

Im running two macs on my home office setup; a 2010 Macbook Pro and a 2011 Mac Mini. Both have been upgraded in the past with Crucial SSDs and for each I used the Carbon Copy software to clone the drives before installation. I noticed the other night I couldn't Airdrop between my two machines. I figured this must have something to do with the clone and was wondering if there was a workaround to fix this issue? Ive also noticed issues in the past with apps like iMessage not updating on both machines, only one or the other. For the time being Dropbox does the trick, but having Airdrop operational between the two would be ideal. Any advice or feedback would be greatly appreciated. Thanks in advance!