Use services like “Down For Everyone Or Just Me” to see if the issue is global or local.
Anonymizing networks and free proxies often route traffic through multiple global servers, which can significantly decrease connection speeds. Video streaming requires substantial bandwidth; therefore, free portable unblockers may suffer from frequent buffering, low resolutions, or strict data caps. Digital Footprints on Host Hardware
Sometimes content is restricted based on your physical location. Step-by-Step: How to Use a Portable Browser to Unblock
For mobile devices, you can use the Opera browser which has a that can be toggled in the settings.