I replaced my previous router because I wasn't getting my whole bandwidth. Now I have the AX6000, just purchased and getting same results. I've also replace my ethernet cable with new ones just bought. I had my service provider come to verify that they are providing it all. They simply say that it your wireless is getting what you should then it is your router.

I do not know network technically enough to understand what is happening. I was getting my full bandwidth prior to 2 weeks ago. The first thing that comes to mind what has changed is that I installed a new windows 11 machine. However, my work pc is windows 10 and showing speedtest results very low also. Prior to all this I was getting 400-600 down and approx 25 upload. I am now at 600 down but only getting 1 upload, download is fine. Where this is not working for me is that my web surfing is spotty at best. Web pages do now snap up, sometimes not at all.

I've done some ipconfig dnsflushing and some release/renew. 

I've updated the firmware.

Lastly, when I speedtest through the admin page of the router it reports 600 down 25 up? My wireless is fine, but want wired.

Any suggestions?