Good morning. I have a problem with my archer mr 200(v3). Firmware is updated, and i used it since may 2019. It's worked well till' last 1 month. the signal strength is stable at 75%. I reinstalled windows in the hope that the problem was a corrupted lan driver, but i still have problem. It's keep disconnect, or take too much time to resolve address(i think my assumption, i'm not an informatic) and so i received the "check your connection" from sites or game when windows show that i'm connected. In the sites case after 10 seconds or more the page autoconnected. I use it via ethernet.

Here what i tried:

set the optional dchp dns to google on(88 etc)

open some port in virtual server(i used it principally for games)

disabled sip alg

tried 4G preferred  and 4G only(no changes )

Sorry for my broken english, and thank you in advance