Since a week ago my AX1500 started to slow down a lot, I have checked with my local ISP and it seems the root cause it's the router itself, my tp link router, I have resetted a lot of times, it has the latest update and instead of giving me the 106 mbps that I normally used to show it barely reaches to 40 megs of download, the upload shows good, it also shows 50-52 mbps and that's it but the download sucks big time.

I need help on this please.

Thank you!