Solved Can not enter Youtube after installing yesterday's updates

[hkBattousai]

Yesterday, I installed the monthly updates of Windows. After the installation, I believe that the network settings somehow changed. I believe so, because after the restart, my firewall software (Comodo) started to ask me to allow or block all in/out going connections, which I had already configured a default policy for.

Since installing those updates, I cannot enter Youtube. I can enter Youtube with my laptop, so it is not a gateway or ISP problem. There is no problem with other sites, just with Youtube.

This problem is very peculiar for me, I can't even guess what the problem may be. Can you suggest me any idea to identify this problem please?

OS: Windows 7 x64 Ultimate SP1

 

[hkBattousai]

I identified the problem.

I had entered Youtube IPs to hosts file years ago because of an ISP problem of that old time. And Youtube apparently changed its IPs at the same moment I installed the updates. It is a mere coincidence. Deleted the old entries from the hosts file, and that solved my problem.