Got a serious problem the started 5 days ago - I open my MBP, and the mouse will move, but not click. Rebooting doesn't help, fsck and hardware tests are both clear, genius bar guy reset the network preferences to default, no help. The only thing that seems to be different is that when logging in, an xfinity network login window appears as a stand-alone (not a webpage, etc.). We don't have Comcast. We disabled auto-login to networks, which didn't help. The affected machine is a late 2013 rMBP. No problems with a 2011 MBP, 2009 MacPro, an ipd mini, or 2 different iPhones. Here's the thing - it only happens in our apartment, or right out front. If we walk across the street, about 50 feet away, and wake it, it will work fine until the next time I close it, even in our apartment. It's definitely not our network equipment. Anyone got any ideas?