A:Answer I had somewhat same scenario but only 1 ring flood light camera, 3 streaming machines, 3 TVs, 2 gaming units , printer, 3 computers etc.
Tried 3 different high end routers and spent lots of green, none of them where strong enough or worked.
My solution spend 200 dollars get Geek SQUAD high tech plan and free in home tech consultation, let them take all the stress away. Money for EQUIPMENT not included with mentioned plans but WELL worth it!
Solved my problem using Netgear Orbi mesh unit. Not perfect but very satisfactory.
Hope this helps YellowFlores!