@Nxus 

The user guide does not show WPA3 but TP Link's web site spec page does show WPA3. If it were me, with both the box and web site wrong, I would return it. 

  @ArcherC8 

Isn't there some sort of firmware update somewhere that could give it the WPA3?  It seems that everything has updates from the manufacturer to keep things current.  Do routers have such updates?

  @Nxus 

There are firmware updates for this router but none of them indicate anything about WPA3.

Be sure you are up to date. 

Thank you. I think I'll just make up a longer and more complicated password. That should do the trick.

BTW, I found a firmware update but I'm not sure if it's newer than what the router already has installed. I downloaded it as a zip file

  @terziyski 

Ok, thank you!  I did the firmware update, but nothing seems to have changed.  Still have WPA2-Personal for my security for some reason.  Looks like I'm stuck with that.  Would my security with WPA2 be sufficient if my password is long and complicated enough?

Also, are you sure about the version number of the update you gave me?  It seems to indicate Version 1 (V1), but on the box mine came in, it says 1.6

  @terziyski 

Well, whether or not it was the firmware update, my router no longer works. It takes several minutes to get connected, and then disconnects every time I turn on a browser, whether it be Chrome or Edge. I used bleach bit to do a cleaning of my system in case there was something there causing the problem, but my Wi-Fi router just isn't working anymore. I now have it connected to the Internet using that Ethernet cable. I don't understand why these products just don't work. It worked for several hours after the firmware update, so I really doubt that's the issue.

Oh well, at least using the ethernet cable eliminates the need to have a long password to be secure.  I just won't be able to stream TV anymore.

  @Nxus 

Try a Factory reset and reenter your settings. 

  @ArcherC8 

Is that done by pressing and holding the small button on the back of the router until it turns off? I did that, and I had to set up the router ID and password again. It didn't help.

Also, I reconnected my Wi-Fi router to try again, and it connected for about 15 seconds, then disconnected. Then it reconnected for about the same amount of time again and disconnected again. It did this three times while I was just sitting here watching it happen. there's obviously something wrong with this thing.  I now have an eternet cable connected between the router and laptop.  That's how I'm online now. I've been trying to connect again using Wi-Fi, but now in my list of Wi-Fi access points, I see that mine no longer has a padlock symbol next to it, but rather an X. When I click on my own access point and enter my password, I get an error message saying that I cannot connect to this network.  It seems that I'm locked out of my own Wi-fi.  Is there a way to unlock it?