[Trouble shooting] Cannot use 3G/4G adapter
1. Please go to “3G/4G USB Adapter Support List” to see if router support user’s 3G/4G USB Adapter
3G/4G USB Adapter Support List：https://www.asus.com/event/networks_3G4G_support/
2. Please make sure router has the newest firmware.
3. Please make sure settings of 3G/4G USB Adapter is correct
How to get the (Utility / Firmware)?
You can download the latest drivers, software, firmware and user manuals in the ASUS Download Center.
If you need more information about the ASUS Download Center, please refer this link.