Which port is used by the connection between the computer and Youtube videos?

I have 5M download speed. Youtube videos used to work fine. All of a sudden they started getting stuck on the loading screen for too long. They loaded eventually but they stayed for about 5 to 10 minutes on the loading screen.

It turned out to be the anti-virus software. When I makes its function of monitoring all ports available, Youtube videos will be stuck on the loading screen. When I cancel this function, Youtube is back to normal.

I don't want to totally prohibit this function to monitor other ports. So, which port is used specifically by the connection between the computer and Youtube videos?

Which port is used by the connection between the computer and Youtube videos?trojan

I believe it's port 80... that's the port used by the web.

Which port is used by the connection between the computer and Youtube videos?abtuvurys 2005

USB...duh