Comcast Xfinity Gigabit internet, just upgraded. Surfboard SB8200 modem with the AX1800 router. Config screen calls it AX20.
Connected via ethernet port on AX1800 yields speeds 800-1000mbps. Wi-fi yields 20-200mpbs. Tried restarting, same results. Tried multiple devices (laptop, ipad, iphone) same results.
I have searched around and haven't found a clear solution. Seems to be an obvious issue with the AX1800 since wired speeds and speeds directly connected to my modem are 4-5x faster.