So, I'm in the same school of thought. I originally fixed this yesterday by installing the cab a few previous post above. Then today I find same thing and it wasn't working again.
Unfortunately I was on the road today and really needed it so I stopped by Starbucks for some free wifi. The really strange thing was once I was connected via wifi and was done and needed to leave I tried sharing again and this time it worked. This is my bat signal for a fresh task and flash once I get back home.
