Is DNS working correctly on your system?
I'd like to see your Photo Mechanic log. In Photo Mechanic go to the Help menu and choose "Reveal Support Data..." and moments later a Finder window will come forward with the zipped log file selected. Use the 'Attachments and other options' link when you're composing your reply to this message and there you'll be able to upload your zipped PM log file.
Thanks,
-Kirk