Orb Mesh 50 Questions (newbie)

Thanks for the information.  Yes it was a typo.  My printer is a HP.  Thanks for the information it was very informative.  I have a few more questions.  Our house is a 4,000sq ft one floor which made the coverage area very large.  The modem is at one end of the house in the office.  Right now we have the Nighthawk with another Netgear repeater plus (4) Netgear extenders plugged into the wall.  It is crazy.  We still have dead spots and we have 6-WIFI networks to choice from which is confusing when we are trying to print over local network or access the NAS or even the wireless speakers.  The repeater is 1 year old and the Nighthawk 4-5 years old BUT it keeps cutting out meaning all of a sudden we lose 5 or the 6 access points.  Our Modem is from Xfinity and it is an Arris.  Not sure if that matters.  We pay for high speed blast.  I did some research on the new 6-system that came out this year.  Some people have said the drawbacks are less ethernet  , no parental control and the cost. I am not actually looking for parental control but rather to prioritize the flow.   If we simply have the access of our printer on WIFI then it would not be password protected.  Is this correct?  The printer is not the big problem but access to our system is.   Thanks for your help.