Can't share printer through a homegroup because of Norton Antivirus

I have about six computers  running windows 7 and 8. All computer have been setup with the same home group password and they are all on the same network(wired and wireless), they all have been sharing printer but after installing norton in two 2 of them(1 windows 7 and 1 windows 8), this two computers can no longer share printer. Please help me on this one.

See if the solution in the following post helps. Although the user has Win XP, the trust issues may still apply here.

 

http://community.norton.com/t5/Norton-Internet-Security-Norton/NIS-2013-problem-transferring-files-between-computers-on-network/m-p/993087/highlight/true#M241781

 

 

 

Are you sure your using Norton Antivirus because that product does not have a firewall?

Dave