@YuriGavshin There's already a feature request for that here. If possible you can try moving RE505X closer to the AX20 to see if that will improve things.

@Ninjaboy08 Check your C20 Internet port status: If C20 Internet port states Unplugged even the cable to the modem is connected, then use another cable CAT 5E/6 or another modem LAN port to connect....

@Perl You have 2 options: 1. Connect AX73 as main router and C7 as an AP - Case 1 (connected with an ethernet cable) 2. Connect AX73 as main router and C7 as extended router using WDS feature...

@HBO You have to replicate the Unify router internet port settings to the AX73 internet port configuration. Observe the type of the Unify router internet connection - is it PPPoE or Dynamic IP ? Set...

@LilKingBoo Try upgrading the device's FW to the latest version and see if that will allow you to control the guest network. Here's how to determine device's HW version and the FW region. The link...

@YuriGavshin What's the make and model of your LTE modem ? Is your AX20 internet IP address private or public ? What you can do is to connect your PC to the LTE modem directly, download the latest FW...