Moved to General Discussion from SiteAdvisor as a more appropriate spot although this is probably a network or firewall configuration issue. I've noticed all your posts are just negative comments and never actually asking for help.
This is a peer to peer support site mainly with McAfee staff only dropping in from time to time. There is 24/7 free support available online where technicians can link to your machine(s) and troubleshoot such issues.
In order to block risky connections and attempts to access the ports on PC’s Personal Firewall correctly blocks ports including TCP ports 135-139 for your protection. You could add the particular exe of the application to McAfee firewall permission list which could have allowed access for the printer .
Thanks Jai, much appreciated, but I have stopped using McAfee and am now using AVG without any problems.
NOTE FOR MCAFEE STAFF: - I would have thought that McAfee should flag up anything it is blocking so that the user as least has some clue that this is happening?