McAfee antivirus sometimes blocks your file or website and to add exceptions to McAfee Firewall, you will need to open the main McAfee windows and then, left-click on the Firewall section of the upper-left navigation menu. Now, left-click on the “Settings” link to the right and left-click on the drop-down menu arrow next to Program permission, and now, left-click on the “Add” button and call on McAfee Support UK to get connected with the experts for any help.
http://www.mcafeehelpnumber.co.uk/http://www.support-phonenumber.com/mcafee-service.php