From the report, you have an active wireless link using a USB wireless device. It looks to be connected to Suddenlink. From the device specifications I believe the device is a Ralink 802.11n adapter, and has IP address 192.168.0.108. Since this device is working and has a connection the AX200 will not negotiate a connection. To use the AX200 you should disable or remove the USB adapter.
It will be helpful to know the model of the Hitron wireless router. Also, would you please give some detail on your Internet connection - download and upload speed. As far as the wireless setup, do you have both 2.4 GHz and 5 GHz bands operating? Do they each have a unique SSID or do they share the same SSID? Did the AX200 ever work reliably?