To decide whether to use the Mobile 4G connection or the WL510 long range wireless connection, you will need to go in to the 4GXtream web interface and click on the Network>WAN menu option….which will display the page below.

You can use the switches at the end of each line to select whether you want to connect to the internet via Mobile 4G or via the WL510 Wi-Fi on the wired WAN interface. In the screen shot above, taken from my boat’s 4GXtream, I do not have an WL510 wireless booster connected to the Wired WAN interface, so it does not show any information about it but on your unit, with the WL510 connected, there should always be an 192.168.10.xxx IP address and uptime values.

Just click Save and Apply after making your selection.