I'm having this problem on both my MacBook and my work iMac as well. I've confirmed that Flash is up to date and enabled. The page loads then says "Attempting to Resume". Then it stops and shows "This Video Cannot be Played" Error 102100.5: Loading of the specified resource has failed. I find a number of issues (errors and warnings) in the Console: * Loading failed for the <script> with source “https://web.localytics.com/v3/localytics.min.js” XML Parsing Error: syntax error * Location: https://tv.xfinity.com/live/Watch-Airdate-1115/5064998174375437105/MSNBC Line Number 1, Column 1: * Strict-Transport-Security: The site specified a header that did not include a ‘max-age’ directive.