Lord you said
"Download a proper Firewall like McAfee "
Im sorry but in all of my experience with McAfee I think their firewall is junk and so is their AV program from a performance standpoint when installed on a computer or workstation. Ive run into nothing but trouble with McAfee inside and outside of work. Id recommend Symantec firewall any day over McAfee. Thats just my opinion and Im not trying to cause trouble Lord.
Cha94