User Guide
4. USB-connected devices cannot be used:
(1) Cannot use USB printer
(2) USB HDD cannot be searched
(3) Cannot use 3G/4G adapter
(4) Cannot use smart phone to share internet through router
My USB printer won't connect
1. Please go to compatibility list for printer server on Global website and check if router
supports user's printer model
Printer Support List:https://www.asus.com/event/network/Printer_Server/
2. Please confirm router has the latest firmware version
3. Please check you have completed and operated printer utility normally.
You can refer to “EZ printer sharing” on Global website or on ASUSWRT(Only for
Windows OS)FAQ
4. Try to set up printer by LPR protocol.
For Windows OS, use LPR protocol to share printing FAQ
For MAC OS, use LPR protocol to share printing FAQ