Problems with install - TV right next to satellite is very slow and won't stream HD

So I spent 2 hours on the phone last night with tech support and the issue appears to be fixed. Turns out there were several issues with both the router settings and my assorted hardware. I'll list the fixes to hopefully help out someone in the future with the same problem:

1. Hard reset of routers to turn back to factory setting

2. Checked the boxes for beamforming and MIMO

3. Changed 2.5Ghz to "11" and 5Ghz to max setting (I think 48).

These steps increased the speedtest on my laptop from 40Mbps to 330Mbps. However, the speed on my Windows desktop and Mac desktop actually got worse. The following steps fixed each:

Windows PC

1. run "devmgmt" and find your wifi card.

2. Delete the wifi card.

3. Then reboot the PC. This will reinstall the drivers.

After rebooting my Windows went from 5Mbps to 300Mbps.

Mac desktop (Hackintosh)

1. Mac wasn't showing the Orbi network. A simple reboot allowed it to find it.

The speed test on this increased, but capped at 100Mbps. After reviewing my specs, I realized that I was using an "n" wifi card. As the other two computers increased speeds to 300, and both have "ac" wifi cards, I think this is the bottleneck.

Finally, after all this, my damn smart TV was still not streaming 4k from Netflix. I was about to return the Orbi when I thought to try 4k on youtube. It worked flawlessly and the TV is clearly pulling in more signal than the 20Mbps shown on the Netflix network test. So I double checked on Netflix and confirmed that I had the box checked for HD content quality. BUT, then I checked the membership plans. I've been a member for years so I didn't know that they had added a new plan. Apparently my plan at 9.99 is only to stream 1080p. UHD requires the new 11.99 plan. So be sure to check you actual Netflix plan if this happens to you.

I hope all that helps somebody else. Thanks for the responses.