Back To My Mac Fixed By Changing DNS Server
Wx.Ca has 3 Macs—2 Mac Minis and a MacBook Pro. To try and keep their email accounts and bookmarks and several other things synchronized, we use Apple's MobileMe service. MobileMe also provides Back To My Mac, which is pretty handy. It lets you share files or the desktop screen of a Mac back home from anywhere on the net.
I should really say it would be pretty handy. I'd never been able to get it to work. Googling around, lots of other people were in the same situation. It's a little fussy about network setup and router types, but my configuration should be good. Regardless, this is what the MobileMe preferences aways showed:
Not very helpful.
Then yesterday, I upgraded two of the Macs to Snow Leopard. Now checking the same preferences screen:
Well, that's a better problem description. DNS for Wx.Ca is provided by our ISP, Shaw TV. Googling around, there seem to be other people having 'issues" with Shaw's DNS servers.
I reconfigured the MacBook Pro to use OpenDNS for DNS service instead. It took about 30 seconds. Instant success:
I wonder what Shaw's DNS servers could be doing to keep Back To My Mac from working?
