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Back to my Mac not working?

Does anyone else have any issues with Back to My Mac not working? My laptop and iMac no longer find each other when on different networks. Both are using macOS and have been restarted.

Hi Zoopy123, 


Thanks for stopping by the Apple Support Communities. I understand that you are having issues with using Back to My Mac, after upgrading to the new macOS Sierra. That is not the experience you'd expect when trying to use this feature. I'll be happy to provide some information on this for you. 

Per macOS Sierra: Use Back to My Mac​
 

To use Back to My Mac, you must have an AirPort Base Station or AirPort Time Capsule set up for NAT-PMP (NAT Port Mapping Protocol) or a router set up for UPnP (Universal Plug and Play). For more information, see If Back to My Mac doesn’t work.


macOS Sierra: If Back to My Mac doesn’t work

Get help using Back to My Mac

Please review the above mentioned articles and if you still have issues, please reach back out. 

Have an awesome weekend! 

I have found Back to My Mac to be unreliable starting with El Capitan and continuing with Sierra.  It  often requires a complete restart of both computers.  Just turning off Back to Mac in iCloud System will not do it.  I have to use Jump Desk to restart the remote computer.  Back to My Mac is faster when it works.  I have also found that my computer (System>iCloud) says that Router needs to be set up for better performance - specifically UPnP and NAT.  Both are set up yet this OS doesn't recognize this.

After many frustrating hours trying to find a solution, this works for me on Sierra 10.12.6:

 

Assuming you get the remote Mac showing up in Finder ... when you Connect As select the Registered User option, then, login using the name of the user's folder on the remote Mac ...

 

On the remote Mac this is the name associated with the Home icon in Finder, and is the same as the user's user folder name - i.e. username in Macintosh HD/Users/username/...

 

My setup used 2 iMacs with non-Apple routers (both with UPnP enabled), and both iMacs with built-in firewall on.

 

For reasons unknown one iMac had named my user folder "joe" while the other named it "joebloggs" while my username was "Joe Bloggs".


Hence to access iMac1 from iMac2 I needed to Connect As joebloggs while to access iMac2 from iMac1 I needed to Connect As joe – in both cases using the password for my Joe Bloggs account on the remote iMac.


Curiously, screen sharing worked by logging on as Joe Bloggs.


Have since noticed how irritatingly inconsistent OSX treats user names!

最后更新：2017-09-08 11:30:42

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