Hello.

recently, about like a month ago, I bought a ARCHER T3U (In France). It worked very nicely, and I was around 200mbps. But yesterday when I came back home the internet was slower, really slower. It has already happened, basically when I had fast (usual) internet I had 3 bars, and when it was slower 2, like you can see in this screenshot.  

It usually would fix itself about a minute after, but I once fixed it by unplugging and plugging back (I did it only once). 

So as I was saying, yesterday when I came back home the internet had only 2 bars. I went on multiple Speedtest websites, and it showed around 1.3. Now, my pc has been reseted back to factory settings, everything deleted, and I changed the USB 3.0 port and it shows 23.91mbps in download. I used to have 10x more! 

In the settings, it says "117/117 (Mbps)", but if I had 117Mbps I wouldn't write this.

If you need aditional informations, here are some I can give you right now:

Windows 11

wifi canal 6 (was changed but no differences)

wi-fi 4 802.11n (Normally 6)

pilot version: 1030.38.712.2019 (microsoft pilot thing said it was up to date)