Hi Noelle,
I was going through your older post to get to get your system information:
Looks like that system is different from the system your troubleshooting today(this one looks like it has newer Network card). Can you run:
inxi -Faz | eos-sendlog
It sounds like you are dual booting your system with Windows (which has no network outages)? Have you applied all the updated firmware to your desktop?
Do you also have the the Arch and LTS Kernels installed? If yes, and you boot the LTS kernel, is Ethernet and Wifi cards still operational. Or do we need to install additional drivers ( like you did in the testing you mentioned at the beginning of the post?
The reason I ask, I have a Realtek wifi (usb) devices in some of my home machines. In some cases the regular kernel built in driver was unstable for connections. The solution was switch to lts kernel. Then i install the recommended driver in the Arch wiki.