Try a different device although you would think if you get 1000 when attached to the modem you should get that through the router. Try different ports on the router with all of the other ports empty...

Be sure your device supports 5 GHz. Try a different channel and channel width.

Dual band does not mean it combines the speed of both bands. Also your device (PC) will receive on one band only. The Archer C9 has a input LAN speed of 1000 so that will be the max speed you can...

Generally you expect the 2.4 to be slower with better WIFI coverage and the 5 ghz to be faster with less coverage. You can try selecting specific channels and widths. Sometimes attached devices can...

When you put the router between routers is it wireless or wired? Check to see if your firmware is up to date ans if not update it. I would re-set to factory and re-enter the minumun settings on the...

I would go with the latest one. I know it is a different price point but if you have WIFI coverage concerns, I would select a MESH router as the performance should be much better than a router and...