Access denied by Vimeo.com

Hi
I am currently using comodo free antivirus.
After installing comodo, I can not visit a few sites.
some sites show IP blocked and vimeo.com shows “Access Denied”.

Can anyone please tell me, how can I solve this problem?

Thank You

You should try disabling the web-filter and see if you can access the sites again, also check if you are using your router or ISP assigned DNS servers.