"Can't connect to this network" with new router

Hey all!

I recently moved and have hit a brick wall trying to connect my Windows 10 PC (specifically my ASUS PCE N-10 network adapter) to my new TP-Link Deco AXE5400 router. I'll put the full list of troubleshooting steps I made below, but the short of it is that my router has had no issues connecting to anything else, and my WiFi card still works and has successfully connected to my phone's hotspot. I assume the next step will be to simply purchase a WiFi card that isn't a decade old but I'd first like to do what I can to make sure that will solve the issue!

A more detailed explanation of the issue:

While I can see the router's 2.4GHz channel, trying to connect my computer via WiFi results in a "can't connect to this network" message. The router is successfully connected to a Win 10 laptop as well as various devices like a PS4, Android phones, an Android TV box, security cameras, etc. While the computer will connect to the internet my phone's hotspot and via Ethernet cord, it won't connect to a guest network, so there's definitely something going on between the router and PC.

So, here's everything I did when working through the problem:

- Forgot network, manually entered network information, and triple checked password correctness

- Checked if the card + router are compatible (router's IEEE 802.11ax/n/b/g is backwards compatible with the card's IEEE 802.11n/b/g)

- Checked router and card were using the same security protocol (WPA2)

- Reset router, modem, and computer multiple times

- Tried to connect after turning off 5Ghz and 6Ghz bandwidths

- Went to ASUS' website and downloaded the newest drivers

- Reset network settings in PC

- Did the suggested config entries from [this Microsoft support page](https://support.microsoft.com/en-us/windows/fix-wi-fi-connection-issues-in-windows-9424a1f7-6a3b-65a6-4d78-7f07eee84d2c#WindowsVersion=Windows_10)

- Did every other suggestion on that page

- Moved PC next to router to ensure it wasn't a signal strength issue

I'm sure I'm forgetting some stuff I was up to but I feel like I was pretty comprehensive in my attempts! The only thing I couldn't try is a helpful suggestion I found on a reddit thread to enable the "random hardware addresses" option on the PC but I couldn't find the toggle - I think my card doesn't have that feature.

Thank you so much in advance to anyone who took the time to read this! I've spent a good amount of hours scouring the internet for suggestions so I'm at the end of what I'm capable of trying on my own.