LTE4506 - Troubleshooting

This guide will show you how you can easiely troubleshoot your LTE4506

Table of Content

A) LED lights

B) Reset the device

C) Update the firmware of the device

D) Change WiFi Password 

E) Slow internet

F) Asking for PIN every reboot

Still cannot login - check this guide: 

Accessing your router via Web GUI

A) LED lights

The LED lights are a good way to see what type of problem you have.

ICON	COLOR	STATUS	DESCRIPTION
			The power signal and quiality of the mobile network to which the LTE4506 is connecting
	Red	Flashing	the power is on but there is no LTE/3G signal received
		Solid	Weak signal quality
	Orange	Solid	Medium signal quality
	Green	Solid	good signal quality
			The internet connection status and SMS status
		Solid	Internet access is available and there is no new SMS
		Flashing	Internet access is available and there is a new SMS
		(fast)
		Flashing	Internet access is not available and there is a new SMS
		(slow)
		Off	Internet access is not available and there is no new SMS
			The WiFi/WPS Status
	Green	Solid	WiFi is on
		Flashing	Data is being transmitted and received
		(fast)
		Flashing	WPS is on
		(slow)

B) Reset the device

First of all, try to reset the device by holding the reset button for 20 seconds and then wait for it to reboot and get the factory default settings

C) Update the firmware of the device

Firmware upgrading to the latest version could help with your issue because it's not running the latest modifications to the software of the device.

1) Go to this website to download the latest firmware https://www.zyxel.com/support/DownloadLandingSR.shtml?c=gb&l=en&kb=M-02507&md=LTE4506-M606

2) Extract the zipped file you have downloaded with the built in extractor of your operative system (or Winzip, 7-zip)

1) Login to the Web GUI of the LTE4506 using this guide: Accessing your router via Web GUI

2) Go to System -> Firmware upgrade and then click on Browse... and choose the .bin file you have extracted.

3) Let the firmware be updated, this can take up to 3 minutes (DO NOT TURN OFF THE DEVICE). 

D) Change WiFi Password 

Login to the device -> go into WiFi -> Wi-Fi Settings and change the Encryption Key to change your WiFi Key.

E) Slow internet

If you're experiencing slow internet you can do a couple of tricks to get it faster again

1) Make sure you have the all the LTE bands selected by login to the router using this guide: Accessing your router via Web GUI

2) Set the DNS to 8.8.8.8 and Secondary DNS to 8.8.4.4

3) Insert the SIM card into your phone and see if you get the same speed

F) Asking for PIN every reboot

If you are experiencing that you have to insert your PIN code to the SIM-card every time you login, you can disable PIN protection under Internet -> PIN Settings

If you still cannot find your answer here. Please check our user guide here:

https://www.zyxel.com/support/DownloadLandingSR.shtml?c=gb&l=en&kb=M-02507&md=LTE4506-M606