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Wifi connection continuously cuts out

I have been having an issue I can’t seem to fix. The WIFI on my 2017 Macbook Pro keeps cutting out, about once every 10-20 minutes. When this happens I lose internet connection and when I click on the wifi icon in the menu bar it shows that my wifi is on and connected to my network, but my network, as well as all other available wifi networks, are greyed out and I am unable to click anything. Turning the wifi off and back on temporarily fixes the problem.

Here is a list of things I have tried so far:

Restart computer
Turn wifi on/off
Remove network and reconnect
Remove wifi service and reestablish
Rebout router
Factory restore of router
New SSID, new channels, new wifi password
Reset the PRAM & SMC
Updated the Mac OS to Big Sur (from Catalina)
Ran Wireless Diagnostics

Running Wireless Diagnostics initially finds nothing when the internet is working, but then when this happened it does detect a "Dropped Wi-Fi Connection", stating that:

Your Mac experienced an unexpected Wi-Fi connection drop, which can be
caused by a combination of environment, configuration, and software
problems.

Provide the diagnostics report created in /var/tmp to an AppleCare
customer support representative for further analysis.

I looked into the logs, but am not really sure what I am looking at. And to make matters worse the applecare on this machine just expired.

Also worth noting that the network has been, and continues to work fine for all other devices (another macbook pro, two iphones, smart tv, etc.) and nothing major changed with the network before this occurred.

Any tips on what to try next?

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