CIS 7.0.317799.4142 - Virus Signatures Won't Update

Edit: [Windows 7 Pro, 64-bit]

I am trying to update CIS 7.0.317799.4142, but the updater checks for updates, and then says, “Error.”

Is something wrong with download.comodo.com? The site is ping-able, but if I go to it, the page gives a 404 error message.

Are there any other secondary comodo update servers that I can use instead?

Hi, you should submitt a support ticket here: https://support.comodo.com/

They probably know all the CIS update servers and can tell you the one you should be using.