Internet Security 2013 & POP3 Mail
I've just upgraded to Internet Security 2013 and my e-mail has now stopped downloading.
Both my regular client - Windows Live - and another client - Thunderbird - both have the same problem.
The error code returned by Windows Live is 0x800ccc19 - server not responding.
I've checked that it is not a problem with my ISP or home router, by running a mail client on a separate Linux machine - this downloads e-mails without problem.
I've pretty much isolated the problem to Internet Security 2013 - if I un-install it, the e-mails download. When I re-install it, the e-mail is broken again.
Turning off all security settings, but leaving Internet Security installed, does not cure the problem
The affected PC is running Windows 7 (64-bit)