May i connect with you remotely troubleshoot the issue directly? Thanks
Yes. Which browser and OS are you on?
Can you download Chrome and then test?
Okay. On Safari, when you go youtube.com, and try to play a video what message or error does it shows?
Does the daily motion video plays?
That's what i was trying to determine. Can you disable filter software, and then test YouTube.com?
Have you tried resetting Safari?
I suggest you turn the filters off and then test, let me know the results then and we'll continue.