Why does my 8250 pixma printer randomly show up as "not connected"?? using BT wifi homehub router with my retina pro (mountain lion)

am getting fed up with having to reboot router and or printer everytime I want to print!!
printer clearly is connected as it shows up in the system but only by rebooting everything will it start up and print
beleive it might be firewall related ??
any pointers gratefully appreciated

Well IMHO any product that has the Norton name on it will never ever be installed on any of my computers, Mac or PC. Some say the newest versions of Norton sftware is not like it was only a few years ago. that being the biggest Resource Hog ever written.
But in the end you really don't need that software on your Mac at all. Personally I don't run any Anti Whatever software on any of my computers, Mac or PC, and Have Never Been Infected with Anything.
So I suggest the first thing you do is uninstall that Norton POS software then test. I hope that clears it up. If not you are back to OS X losing the connection between the computer and rinter on your network.
One thing you should look at is giving the printer a full time Static IP address and or locking in a DHCP allocated IP address by setting your router to always assign that IP to the printer and that is done by the printer MAC address (That is Media Access Control address not a Mac computer address) that is IF your router has that feature.

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