Wanted to report back. Turned out there was no degradation at about 40 feet from the router between the 5GHz band and the 2.4GHz one. In fact, while speedtest.net reported a download speed of 31 Mbps...

@ArcherC8 Thanks for your thoughtful response. A few follow-ups ... > 2.4GHz will give you more distance. The 5GHz will give you more speed Do you have an example of a distance at which there is a...

Hi, I'm trying to get the most out of my router, speed-wise, and realize I have a lot of settings that I'm not even sure what they mean. We have 5 devices (2 computers, 2 phones, and a NEST)...