ATT installed the modem. The Eero equipment came. We purchased the highest level offered - the tri band mesh system which is rated for a 4000 sqft house - our house is 1570 sqft. We followed all of tech support recommendations on how to set up and use the system yet we still continue to have lagging issues with out TV's and we are just using them for FireTV Stick. I guess I kind of do not understand why we are having these issues. I have contacted support a number of times and am told the same thing each time, that they can see the number of devices we have attached to our system and that we have great download and upload speeds, so if that is the case - why is my modern thin screen TV, which is in the same room as the modem and the Eero base, still having lagging issues. Tech support tonight has a 30-40 minute wait time and the text tech support is less than helpful. I chose to support a local business and I feel like it was the wrong choice and maybe I should go back to lining big corporations pockets with money instead of trying to support the little guy that supports our local economy.