Two 4k 5Ghz sticks, one brand new, won't connect

Hello!

I've been using Roku's for at least 5 years. I have 5 total, they all do 4k and use 5Ghz. I have one that just one day stopped connecting to 5Ghz. I messed with it and decided it died, okay it happens.

I bought another and fresh out of the box, it won't connect to 5Ghz. I have 3 unique SSID's, one for 2.4, two for 5ghz. Everything else in the house connects no problem. I turned off DFS in the router. I limited the channel range to fit only within the Roku's range (why it says it works with a standard but really doesn't is another topic.) The only change I made on my end is move the router, of course since then I made the above changes.. I moved it to a more central location, actually closer to devices. I've also moved the devices to other locations in the house and they also won't connect to 5Ghz.
Recap: I have 5 total Roku 4k and 2 we will call "old" that both work on both 5Ghz SSID's. A 3rd bought in the last year won't connect. A brand new one out of the box won't connect. All 4 also connect to 2.4ghz just fine.
I have 3 unique SSID's, one for 2.4, two for 5ghz. Everything else in the house connects no problem. I'm at wits end. I can't check right now to see when the last update was, or if I can even see that info but that's the only thing I can think of.