Air Drop on 10.10.1 not seeing nearby Mac.

Question

I was trying to send a few files from my Mac to the other Mac in the house using Air Drop.  This has always worked in the past but this is there first time it is being attempted after upgrading (both Mac's) to 10.10.1.
Airdrop is started on both Mac.  The other Mac can see my Mac but my Mac does not see the other Mac.   If the other Mac Air Drops a file to my Mac, the other Mac then shows on my Mac and the files is downloaded.  Then, on my Mac , if files are dragged onto the other Mac in Air Drop, the other Mac disappears and nothing is transferred.
Too wierd!
Any help??
Thanks,
Dave

Answer 1

Assuming this was working before the upgrades, then I would reinstall Yosemite on both computers, but do so one at a time testing Airdrop after the reinstall.
Reinstalling OS X Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list.  In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
Also see:
Reinstall OS X Without Erasing the Drive
OS X Yosemite- Reinstall OS X
     Note: You will need an active Internet connection. I suggest using Ethernet
                 if possible because it is three times faster than wireless.