There is a problem with the LAN/ Ethernet connection of the 4G router. Please check the following
Check the basic Settings
1. Please ensure your device (secondary router/computer) has turned on DHCP, EZR33/EZR23 router already turn it by default.
2. If your device is a router, please make sure the Lan port connects with the WAN port on your router
3. Please check if the LAN interface has bound to the PoE port (eth1), refer to below screenshot.
** You can reset the router to the default setting.
a) Go to “Network / Interfaces”. Click “Edit” on the LAN interface.
b) Check “Physical Settings,” make sure the “Interface” bound to “eth1”.
c) And also, the “Firewall Setting” should bind to the LAN zone.
Check the hardware
1. Please try another LAN cables to see if it works?
Make sure the LAN cables connected tightly and use less than 50m LAN cables.
After confirmation of the problem, please contact our sales team to get the replacement part if needed.