NETFLIX on TV kills bw for other devices
I have AT&T Gb service with BGW-210-700 Router. I have 3 DISH TV's, only 2 active with 1 Hopper3 and 2 Joey's. One is new Samsung 4K and the other is Samsung 3D "smart" tv from 2013 - both connected via wifi. Just got Netflix free trial which is the UHD option. When husband streams NETFLIX I can't use my laptop - internet so slow many sites won't load or get error msgs about connection, etc. I have no ethernet Cat6 in walls and router is in a MBR closet in MBA behind clothes...…. Because my office is in a detached "casita" (and the 3rd TV) is in the backyard, I installed a Gb wifi extender to get better signal for the printer/office. But I can't attach the extender to router by ether either. My newest laptop (new, 802.11/AC wifi that gets ~887 Mbps when no Netflix is streaming. Other devices in the chain probably don't support Gb throughput.....and there are a lot of them: My VIVINT Security system (with 4 cameras) is a bw hog on the 5 Ghz radio. Samsung Fridge with the internet display on front, 2 Sonos speakers, other smart appliances (probably using 2.4 Ghz radio). 2 iPad Pro's (newish). 2 Sam. Galaxy S9's, visitor's cellphones, other laptops (occasionally). I'm considering the following things - Which option would work best from below list - Or what other options I dont' know about??
* Get a Gb ether/USB3 adapter for my computer and attach via short cable to laptop from extender or worst case long cable to router directly, Oh my extender can be set up as a router/AP. Haven't tried - complicated.
* Get my own new Router (I like mgmt. capabilities of Peplink) (Can I replace the ATT router?), and throttle the TV MAC or static IP of the TV. Husband will not like that, but ……..
* Get a laptop that has an onboard true Gb ethernet port....and connect to extender or worst case to router by long cable Husband will not like that either.
* When trial is over set NETFLIX to play only at their middle level (HD).
The best solutions are unaffordable at the moment: run CAT6 through attic and walls and move router - would take AT&T to do.
Which could work better?
THANKS FOR HELP!!