Recently got an AX17 and at first everything was working fine, but then a few days ago I noticed I kept getting an error when trying to log into my MS account through Windows. I thought it was a temporary issue (and not on my side) until I tried again both yesterday and today through the MS web page, only to realize it's still happening. Mind you, I can log in perfectly fine on other routers, it's just the AX17 that for some reason won't let me. This is the error I get, the link leads to a MS support page for error 400.

EDIT: Solved, it seems like it was a DNS issue. The AX17 was using Cloudflare public DNS, didn't really think that would be an issue, but after switching to Google the issue was gone.