Ignorance and callousness are not virtues
Well, did you change ANYTHING the last few days - any new extensions; did you change any of your settings; how about updates...did you update anything, like your firewall for instance? If the answer is yes, look there first.
Try disabling your firewall(s) (windows one too) and streaming a video. If it works, you'll know where to look. Reboot your computer. Sometimes things get messed-up and a reboot will set them right. Clear your caches again - if you're in doubt about how, use ccleaner. Turn any and all malware scanners - especially in the browser - off, then test. If it works, you'll need to figure out how to add the appropriate sites to the scanner's white list.
A bleeding heart is a symbol of holiness, a symbol of compassion, not an epithet
When our discourse sinks to the level of meaningless, pejorative labels and personal name-calling rather than honest reflection and reasoned dialogue, we are no longer a people, but a mob