Troubleshooting - ZyXEL Communications LTE3301-PLUS Quick Start Manual

LEDs
White
Power
White
Internet
White
LTE/3G
Green
Green
Amber
Signal
Red
Strength
Green (2.4G WiFi)
WiFi/WPS
White (5G & 2.4G+5G WiFi)
White
USB
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Blink - Device booting
On - Power On
Off - Power Off
Blink - Data traffic is being transmitted
On - Internet connected
Off - Internet is unavaliable
Fast Blink - Searching for channel
Slow Blink - WAN link ok and connected via 3G
On - WAN link ok and LTE connected
Off - WAN failed
On - WAN link ok and connected via Ethernet
port
Off - WAN failed
On - Good (4G/3G)
On - Fair (4G/3G)
On - Low (4G/3G)
Blink- No 4G/3G signal
Fast Blink - WLAN data TX/RX
Slow Blink - 2.4G WPS process in progress
On - WLAN interface is enabled
Off - WLAN/WPS interface is disabled
Fast Blink - WLAN data TX/RX
Slow Blink - 5G WPS process in progress
On - WLAN interface is enabled
Off - WLAN/WPS interface is disabled
On - USB interface is connected
Off - USB interface no connection
Blink - USB negotiation or traffic transmission

Troubleshooting

Power and Hardware Connections
- Make sure SIM card is correctly installed in LTE3301-PLUS.
- Make sure the power adapter is connected correctly.
LTE3301-PLUS Access and Login
- Make sure you are using the correct IP address.
• The default IP address is 192.168.1.1.
• If you changed the IP address and have forgotten it, reset the
device to factory defaults by pressing RESET button for more than
5 seconds.
- Make sure your Internet browser does not block pop-up windows
and has JavaScript enabled.
- Make sure you enter the username and password correctly.
Default password is 1234. If this does not work, reset device to its
factory defaults by pressing RESET button for more than 5
seconds.
Internet Access
- Make sure you insert an LTE SIM card into the card slot before
turning on the LTE3301-PLUS.
- Log into the web configurator (admin, 1234 are the default
username and password).
Click Setup Wizard, then check the setting in Step 2 WiFi Setup.
- Make sure LTE SIM card's account is valid and has an active
data plan.
- When using a pre-paid SIM card, insert SIM card on another LTE
device to check if SIM card still works. If SIM card works on another
LTE device, contact the vendor. If SIM card does not work, contact
your service provider.
WiFi Connections
- Make sure WiFi is enabled on the LTE3301-PLUS.
- Make sure wireless adapter (installed on your computer) works.
3G/LTE Connections
- Make sure SIM card's account is valid and has an active data
plan.
- Install 3G/LTE external antennas to strengthen cellular signal.
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