This article offers comprehensive solutions for resolving common internet-related issues, such as connectivity problems, instances of no internet access, and step-by-step instructions on resetting your LTE device. Additionally, it provides guidance on entering PIN codes and configuring APN settings manually. The article also includes detailed firmware upgrade guides tailored for the following models: LTE2566-M634, LTE3202-M437, LTE3316-M604, LTE5388-M804, WAH7601, and WAH7706.
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LTE3202 Troubleshooting
Table of Content (LTE3202)
2) Enter the PIN-code of the sim-card
3) Enter APN-settings manually
4) Firmware Upgrade the device
A) Introduction to the Unit
You can determine what is wrong with your device by looking at the front panel:
| LED | COLOR | STATUS | DESCRIPTION |
| Network | Blue | Blinking | The device is booting |
| On | The device is connected to a 4G network | ||
| Green | On | The device is connected to a 3G network | |
| Yellow | On | The device is connected to a 2G network | |
| Red | On | There is a system failure during POST | |
| Signal Strength | Blue | On | The signal strength is excellent |
| Green | On | The signal strength is fair | |
| Red | Blinking | The signal strength is poor | |
| LAN | Blue | On | The Ethernet LAN connection is ready |
| Blinking | The device sending/receiving data on the LAN | ||
| Off | The device has no ethernet connection on LAN | ||
| WiFi/WPS | Blue | On | The WiFi is activated |
| Blinking | The WPS process is in progress | ||
| Off | The WiFi is not activated | ||
| SMS | Blue | Blinking | There is a new SMS message |
B) Troubleshooting the unit
Let's look at some ways you can solve the issues you're having.
1) RESET the unit
Firstly, if you haven't done many changes to the configuration of the unit, I would start with a reset of the unit - by pressing and holding the button for 20 seconds:
This would reset the device back to factory reset, where your WiFi and admin password will go back to the factory default which you can find under the device.
2) Enter the PIN-code of the sim-card
If you have a sim-card with a PIN-code, you might need to insert the PIN-code into the unit.
If you don't know if you have a PIN-code or not, try inserting the sim-card into your mobile phone, if it doesn't ask for a PIN-code, you don't have one.
Login to the unit by connecting your computer to the WiFi of the LTE3301-M209 and enter http://192.168.1.1 using your browser and use the username admin and password 1234:
If you get problems, use this article: Accessing your router via Web GUI
Navigate to the B section to Configuration -> Network ->
WAN -> PIN Management and enter the PIN-code. If you don't want the device to require PIN every time you restart the unit, set PIN-code Request function to "Disable" and hit apply.
After you have entered the PIN Code in the box, press "Apply".
3) Enter APN-settings manually
If you are still having problems after resetting the unit, you might need to enter the APN information of your SIM-card manually in the device - you can find the APN information by calling your service provider (ISP).
Login to the unit and go to configuration -> Network -> WAN -> WAN management -> Modify -> Dial Up-profile and choose "Manual"
When you click on manual, you will find the APN settings which you can enter manually by inserting the information that your service provider can give you.
3) Try another sim-card
You can also try to use another SIM-card in the unit to see if the SIM-card you have is faulty. You can also insert the LTE SIM-card into a mobile phone and see if you get a signal.
4) Firmware Upgrade 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&kbid=M-02857&md=LTE3301-M209
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 LTE3301 using this guide: Accessing your router via Web GUI
2) Go to Maintenance-> Firmware upgrade and then click on Browse... and choose the .bin file you have extracted
3)
Click on upload and let the firmware be updated, this can take
up to 3 minutes (DO NOT TURN OFF THE DEVICE).
https://www.zyxel.com/support/DownloadLandingSR.shtml?c=gb&l=en&kbid=M-03445&md=LTE3202-M437
LTE2566 Troubleshooting
You will find the WiFi Name (SSID) and Password if you go into the internal interface and choose Menu -> SSID & Password:
Table of Content (LTE2566)
2) Enter the PIN-code of the sim-card
3) Enter APN-settings manually
4) Firmware Upgrade the device
A) Introduction to the Unit
You can determine what is wrong with your device by looking at the front panel:
| Label | DESCRIPTION |
|
|
This displays the type of network your LTE2566-M634 is connected to and its signal strength. Your network can be either 3G or 4G. |
|
|
This displays if the SIM card could not be detected by the LTE2566-M634. |
|
|
This displays if the SIM card’s data plan cannot be used in another country. |
|
|
This displays when the LTE2566-M634 cannot
access the SIM card because it is locked. |
|
|
This displays when the LTE2566-M634 is receiving/transmitting
data to/from the Internet. |
|
|
This displays the WiFi network status. The
number indicates how many clients are currently connected to the LTE2566-M634. |
|
|
This displays when the LTE2566-M634 receives
an SMS (Short Message Service) message. |
|
|
This icon shows the LTE2566-M634 battery life. |
|
|
This shows your LTE2566-M634’s Internet Service Provider. |
|
|
This displays the LTE2566-M634’s speed when receiving/transmitting data to/from the Internet. |
B) Troubleshooting the unit
Let's look at some ways you can solve the issues you're having.
1) RESET the device
Firstly, if you haven't done many changes to the configuration
of the unit, I would start with a reset of the unit - by pressing
and holding the button for 20 seconds:
This would reset the device back to factory reset, where your
WiFi and admin password will go back to the factory default which
you can find under the device.
2) Enter the PIN-code of the sim-card
If you have a sim-card with a PIN-code, you might need to insert the PIN-code into the unit.
If you don't know if you have a PIN-code or not, try inserting the sim-card into your mobile phone, if it doesn't ask for a PIN-code, you don't have one.
Login to the unit by connecting your computer to the WiFi of the LTE2566 and enter http://192.168.1.1 using your browser and use the username admin and password 1234:
If you get problems, use this article: Accessing your router via Web GUI
Navigate to the B section to Configuration -> Network ->
WAN -> PIN Management and enter the PIN-code. If you don't want the device to require PIN every time you restart the unit, set PIN-code Request function to "Disable" and hit apply.
After you have entered the PIN Code in the box, press "Apply".
3) Enter APN-settings manually
If you are still having problems after resetting the unit, you might need to enter the APN information of your SIM-card manually in the device - you can find the APN information by calling your service provider (ISP).
Login to the unit and go to Configuration -> Network -> WAN -> WAN management -> Dial Up-profile and choose "Manual-configuration"
When you click on manual, you will find the APN settings which you can enter manually by inserting the information that your service provider can give you.
3) Try another sim-card
You can also try to use another SIM-card in the unit to see if the SIM-card you have is faulty. You can also insert the LTE SIM-card into a mobile phone and see if you get a signal.
4) Firmware Upgrade 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&kbid=M-03365&md=LTE2566-M634
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 LTE2566 using this guide: Accessing your router via Web GUI
2) Go to Maintenance-> Firmware upgrade and then click on Browse... and choose the .bin file you have extracted
3)
Click on upload and let the firmware be updated, this can take
up to 3 minutes (DO NOT TURN OFF THE DEVICE).
If you couldn't find the solution, please view the user guide here:
https://download.zyxel.com/LTE2566-M634/user_guide/LTE2566-M634_V1.0.pdf
LTE5388-M209 Troubleshooting
Table of Content (LTE5388)
2) Enter the PIN-code of the sim-card
3) Enter APN-settings manually
4) Firmware Upgrade the device
A) Introduction to the Unit
You can determine what is wrong with your device by looking at the front panel:
B) Troubleshooting the unit
Let's look at some ways you can solve the issues you're having.
1) RESET the unit
Firstly, if you haven't done many changes to the configuration of the unit, I would start with a reset of the unit - by pressing and holding the button for 20 seconds:
This would reset the device back to factory reset, where your WiFi and admin password will go back to the factory default which you can find under the device.
2) Enter the PIN-code of the sim-card
If you have a sim-card with a PIN-code, you might need to insert the PIN-code into the unit.
If you don't know if you have a PIN-code or not, try inserting the sim-card into your mobile phone, if it doesn't ask for a PIN-code, you don't have one.
Login to the unit by connecting your computer to the WiFi of the LTE3301-M209 and enter http://192.168.1.1 using your browser and use the username admin and password 1234:
If you get problems, use this article: Accessing your router via Web GUI
Navigate to the B section to Network Setting -> Broadband -> Cellular SIM and enter the PIN-code. If you don't want the device to require PIN every time you restart the unit, set PIN-code Request function to "Disable" and hit apply.
After you have entered the PIN Code in the box, press "Apply".
3) Enter APN-settings manually
If you are still having problems after resetting the unit, you might need to enter the APN information of your SIM-card manually in the device - you can find the APN information by calling your service provider (ISP).
Login to the unit and go to Network Setting -> Broadband -> Cellular APN and click Modify on the APN that is "Enable" (in this case APN #1):
When you click on modify, select APN Manual Mode, and then you will find the APN settings which you can enter manually by inserting the information that your service provider can give you.
3) Try another sim-card
You can also try to use another SIM-card in the unit to see if the SIM-card you have is faulty. You can also insert the LTE SIM-card into a mobile phone and see if you get a signal.
4) Firmware Upgrade 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&kbid=M-03327&md=LTE5388-M804
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 LTE5388 using this guide: Accessing your router via Web GUI
2) Go to Maintenance-> Firmware upgrade and then click on Browse... and choose the .bin file you have extracted
3) Click on upload and let the firmware be updated, this can take up to 3 minutes (DO NOT TURN OFF THE DEVICE).
Still cannot find your solution? Please check out the user guide here:
https://www.dropbox.com/s/u4gni80jlxbx4e3/LTE7480-M804_1.00.pdf?dl=0
WAH7601-M209 Troubleshooting
Table of Content (WAH7601)
1) How do I login to the WiFi?
2) What does the LED lights mean?
6) There is no signal / bad signal
7) Enter APN-settings manually
8) Firmware Upgrade the device
1) How do I login to the WiFi?
a) Turn off the device with the power button och remove the battery. Under the battery, you can find the credentials for login:
b) Write down the credentials on a note and start up the device again with the power button
c) Find the WiFi name and enter the Key as password.
2) What does the LED lights mean?
Be sure the power button, WiFi and signal are lighting up.
The letter button is only for SMS, so please disregard that.
| LED | Color | Status | Description |
| Green | On | The WAH7601 is in the booting state and getting ready for use. | |
| Blue | On | The WAH7601 is in a full charge state. | |
| Amber | On | The WAH7601 is in a half-charged state. | |
| Blinking | The WAH7601 is in the charging state. | ||
| Red | On | The WAH7601 is in a low battery charge state. | |
| Off | The WAH7601 is not turned on or not in the charging state. | ||
| Blue | Blinking | The WAH7601 has received an SMS message. | |
| Blue | On | The WAH7601 does not have a connection with a wireless client. | |
| Blinking (slow) | The WAH7601 has a connection with a wireless client. | ||
| Blinking (fast) | The WAH7601 is setting up a WPS connection with a wireless client. | ||
| Blue | On | The WAH7601 is connected to a 4G LTE network. | |
| Blinking | The WAH7601's SIM card is registered to a 4G cellular network but there is no network connection. | ||
| Green | On | The WAH7601 is connected to a 3G cellular network. | |
| Blinking | The WAH7601's SIM card is registered to a 3G cellular network but there is no network connection. | ||
| Purple | On | The WAH7601 is connected to a 2G cellular network. | |
| Blinking | The WAH7601's SIM card is registered to a 2G cellular network but there is no network connection. | ||
| Red | Blinking | The WAH7601 detected an error while self-testing, or there is a device malfunction, or there is no SIM card detected. |
3) Power Button
If the power button is not lighting up try to:
- charge the battery by using the charger - when the power button is blue, the battery is fully charged
- To turn the device on, press the power button until the power LED lights green
- To turn the device off, press the power button and release it when the power LED is off
4) Reset the device
Remove the lid on the back-side and then press the little reset button with a paperclip for 10 seconds. The device should blink red and then the Power LED should turn green.
5) No WiFi
- If your WiFi symbol on the device doesn't light up. Beside the power button, there is a WPS button - if you hold it down for more than 5 seconds, no device can connect. Hold it for 5 seconds again to re-activate the WiFi network again.
- Make sure you have your computer connected to the right WiFi of WAH7601 by clicking on the WiFi symbol
6) There is no signal / bad signal
- Check your phone to see the connection on your 4G-network - if you have a bad connection on your 4G network it might be the area where you are living
- Go to another location to test the device
- Check your operator's coverage map by searching on Google for "Coverage map 'operators name'"
If you still cannot find your answer here. Please check our user guide here:
7) Enter APN-settings manually
If you are still having problems after resetting the unit, you might need to enter the APN information of your SIM-card manually in the device - you can find the APN information by calling your service provider (ISP).
Login to the unit and go to Configuration -> Network -> APN Configuration:
When you click on manual, you will find the APN settings which you can enter manually by inserting the information that your service provider can give you.
7a) Try another sim-card
You can also try to use another SIM-card in the unit to see if the SIM-card you have is faulty. You can also insert the LTE SIM-card into a mobile phone and see if you get a signal.
8) Firmware Upgrade 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&kbid=M-03365&md=LTE2566-M634
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 LTE2566 using this guide: Accessing your router via Web GUI
2) Go to Maintenance-> Firmware upgrade and then click on Browse... and choose the .bin file you have extracted
3) Click on upload and let the firmware be updated, this can take up to 3 minutes (DO NOT TURN OFF THE DEVICE).
WAH7706 Troubleshooting
Before starting the operations, make the physical connections of your modem as follows. Make sure that the device (phone, tablet or computer) you will install is connected to your modem wired or wirelessly.
You will find the WiFi Name (SSID) and Password if you go into the internal interface and choose Menu -> SSID & Password:
Table of Content (WAH7706)
2) How to change WiFi password
3) Enter the PIN-code of the sim-card
4) Enter APN-settings manually
6) Firmware Upgrade the device
8) There is no signal / bad signal
A) Introduction to the Unit
You can determine what is wrong with your device by looking at the front panel:
B) Troubleshooting the unit
Let's look at some ways you can solve the issues you're having.
1) RESET the unit
Firstly, if you haven't done many changes to the configuration of the unit, I would start with a reset of the unit - by pressing and holding the button for 20 seconds when the device is powered on:
This would reset the device back to factory reset, where your WiFi and admin password will go back to the factory default which you can find under the device.
2) How to change WiFi password
Login to the unit by connecting your computer to the WiFi of the WAH7706 and enter http://192.168.1.1 using your browser and use the username admin and password 1234:
If you get problems, use this article: Accessing your router via Web GUI
Navigate to Wi-Fi -> Wi-Fi Settings and change the "Encryption Key" and then hit "Apply":
3) Enter the PIN-code of the sim-card
If you have a sim-card with a PIN-code, you might need to insert the PIN-code into the unit.
If you don't know if you have a PIN-code or not, try inserting the sim-card into your mobile phone, if it doesn't ask for a PIN-code, you don't have one.
Login to the unit by connecting your computer to the WiFi of the WAH7706 and enter http://192.168.1.1 using your browser and use the username admin and password 1234:
If you get problems, use this article: Accessing your router via Web GUI
Navigate to Internet -> PIN Settings and enter the PIN-code. If you don't want the device to require PIN every time you restart the unit, set PIN-code Request function to "Off" and hit apply.
After you have entered the PIN Code in the box, press "Apply".
4) Enter APN-settings manually
If you are still having problems after resetting the unit, you might need to enter the APN information of your SIM-card manually in the device - you can find the APN information by calling your service provider (ISP).
Login to the unit and go to Internet -> APN Configuration
When you click on manual, you will find the APN settings which you can enter manually by inserting the information that your service provider can give you.
5) Try another sim-card
You can also try to use another SIM-card in the unit to see if the SIM-card you have is faulty. You can also insert the LTE SIM-card into a mobile phone and see if you get a signal.
6) Firmware Upgrade 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&kbid=M-03365&md=LTE2566-M634
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 LTE2566 using this guide: Accessing your router via Web GUI
2) Go to Maintenance-> Firmware upgrade and then click on Choose File... and choose the .bin file you have extracted
3) Click on upload and let the firmware be updated, this can take up to 3 minutes (DO NOT TURN OFF THE DEVICE).
7) If you have No WiFi
- If your WiFi symbol on the device doesn't light up. Beside the power button, there is a WPS button - if you hold it down for more than 5 seconds, no device can connect. Hold it for 5 seconds again to re-activate the WiFi network again.
- Make sure you have your computer connected to the right WiFi of WAH7601 by clicking on the WiFi symbol
8) There is no signal / bad signal
- Check your phone to see the connection on your 4G-network - if you have a bad connection on your 4G network it might be the area where you are living
- Go to another location to test the device
- Check your operator's coverage map by searching on Google for "Coverage map 'operators name'"
If you still cannot find your answer here. Please check our user guide here: