@Vincent-TP 

Where can I find instructions for how to change the EAP610 setting to make the default the 5GHz connection. I actually made an attempt to do that yesterday but couldn't figure out how to do it with the sort of setup I have connected to a Spectrum router. I tried using the Omada app on the iPhone with no luck and I'm now sure how to connect with it otherwise now that the EAP610 SSIDs no longer show up in the WiFi connections on my iPhone.

Also, every time I try to change anything, or even run a speed test from my iPhone, the EAP610 looses connection to the internet, even though my iPhone (or iPad) is still connected to it. This makes me think that it has lost connection to my Spectrum router because when I go back inside where I am connected directly with the router WiFi it still works fine.

If I can find a long enough ethernet cable I will see what the speed is when it is directly wired.

Thanks

  @GreggDB 

I don't have an ethernet cable long enough to reach from my house to the patio where the EAP610 is located. After downloading the manual and noting that it needs to be wired directly to ethernet to be able to manage it via a web browser connection, I brought it inside and connected it to my router with an ethernet cable. Then I clicked on the following link in the manual to get the IP address to make the connection to the EAP: 

"Go to https://www.tp-link.com/download/EAP-Controller.html#EAP_Discovery_Tool to download, install and launch EAP Discovery Utility on your PC"

That link appears to no longer be valid. I also have a Mac, not a PC. 

  @GreggDB 

I am getting extremely frustrated. I spent the day figuring out how to find the IP address of my EAP on the Spectrum site. Once I got on I tried to change from the 2.4MHz channel to the 5MHz channel but made some sort of mistake, after which the EAP would no longer connect to my router's WiFi, even after hard connecting to an ethernet cable and selecting the 5MHz channel. I finally ended up doing a factory reset and starting over. I got it to connect, after the usual very looooong delays before the EAP seems to take to do anything and thought I was at least back to where I started, able to connect out on my patio. A light rain started so I unplugged the EAP as I don't yet have an outlet sufficiently protected from the rain. Once the rain stopped I plugged in back in. Half an hour later, no connection to the internet. So, I can get on the WiFi out there, but the EAP is not talking to the router so, no connection. ------- Frankly, this thing shouldn't be sold on Amazon where home users can get a hold of it, or Amazon's Rufus should be trained not to tell customers that it can be used as a WiFi mesh extender with non tp-link routers.

It extremely difficult to troubleshoot because it takes so long to boot up and start communicating that you never know if you've screwed up or it just isn't going yet. Really bad. Really really bad and time wasting.

  @GreggDB 

I would like to apologize for my outburst yesterday. I went out this morning and found that my iPhone was not connecting to my WiFi network. It was switching over to 5G+ and getting incredibly high results when I ran a speed test. So, I took my iPad out, which does not have a cell connection, and did a speed test with it. It stayed connected to my WiFi network and got reasonable results (200-300 Mbps), depending on how close I was to the EAP. The iPhone was getting 600+ Mbps on AT&T's cell network. A couple of months ago AT&T came through the neighborhood upgrading to fiber. Their lines run above my back property line, near the patios. The results from the speed test make me think that there is a 5G+ cell very close to me in the back part of my yard and the iPhone is switching over to it when I try to run a speed test. I don't know just how fast the best AT&T 5G+ cell connection is supposed to get, but I will check. When I do a speed test the iPhone seems to switch over automatically to the higher speed 5G+ network. The only problem is that I have had cases when I have been surfing the web where it had no connection, where it seemed to get caught in no-man's land between the two connections. I will have to experiment some more using both the iPhone and the iPad. I hope that the WiFi connection with the iPad will remain solid.

  @GreggDB 

I just saw your reply from this morning. Unfortunately, Spectrum does not provide access to the settings of the WiFi 6 router, although, when the technician set it up a few years ago he did seem to be able to go in and change some settings. I did discover during my troubleshooting that the Sprectrum WiFi 6 router is an ASKEY SAX1V1K router. I can probably find the manual someplace and see if I can follow its instructions to manage the router, or if Spectrum has modified the software to prevent that.

As long as the iPad gets a consistent connection in the back part of my yard I don't think I'll need to play with that. At that point it becomes an iPhone problem, if it doesn't consistently switch to a connection with good service (AT&T cell or Spectrum WiFi).

  @GreggDB 

I spoke too soon about the EAP staying connected to the WiFi network. It didn't. I experimented by moving it right behind the house and it still wouldn't connect. So I hardwired it with an ethernet cable that I ran through an open window and tried again. Even though I was testing in the back of the yard at 40 to 60 feet away from the EAP the speed test numbers were good, so I mounted it about 7 ft high on a window frame at the back of the house. Raising it above the 36" high bar cart I had it resting on seemed to improve the speed test numbers. I'm getting between 400 and 480 Mbps. It's actually faster at the patio that's further away from the EAP. That's only one test in each location but, in any case, it's far higher bandwidth than I am ever likely to need out there. I will need to drill "hole a" (reverse the letters, in the correct order it is considered to be sensitive language which goes against the rules of the Community) through the back wall to run the ethernet cable out but that shouldn't be too horrible a job. Here's hoping that the connection stays reliable from here forward.