Beelink CS-George
As the latest test, I took the Intel AX200 wifi card out of my old laptop and put it into the GTI15. While it was doing 20-23 MB/s in the laptop, it slowed down to the usual 0.5-1 MB/s in the GTI15. It does not matter where I do the tests. Even less than 1m away from the router the values are the same.
For me, this means a) my router is not the problem, b) my internet connection is not the problem and c) both wifi cards seem to be fine as well (I have not put the BE200 into my old laptop to check but I suspect it to work just fine).
Are there any other factors or components that might influence the wifi connection? Maybe some BIOS settings? (There a quite a bunch of “connectivity settings” that I do not understand.)
Will it help if I provide the serial numbers of the devices? If so, can I DM them to you?