User's Manual

Index 61
Appendix
The following topics cover items such as troubleshooting, device specifications, applicable warranty and
service information, customer service contacts, and applicable trademark and copyright notices.
Troubleshooting
Check the questions and answers below for troubleshooting solutions for common device issues.
Check Here First
Question: Unable to connect via Wi-Fi (WLAN)
Answer 1: Check whether the mobile broadband device is properly connected to the computer or
other external device.
Answer 2: If OPEN WEP is the security method being used, check whether the correct WEP key is
entered. If the WEP key is unknown, see Wi-Fi basic settings to reset the WEP key and reconnect the
device.
Answer 3: Check whether the correct WPA key is set. If the WPA key is unknown, see Wi-Fi basic
settings to reset the mobile broadband device or see the WLAN Initialization Sticker to reset the WPA
key, and then reconnect the device. WPA/WPA2 security may not be supported depending on the Wi-
Fi device. See the Wi-Fi device user guide for information.
Question: Internet connection fails.
Answer 1: Make sure that you are within the service area.
Answer 2: If signal reception is poor, move to where signal reception is good and then reconnect.
Answer 3: The access point might be busy depending on the time of day. Wait a little and then
reconnect.
Answer 4: Activate the Web UI and make sure that network settings are correct.
Question: Forgot PIN / Unknown PIN Unblocking Key (PUK) / SIM card is locked.
Answer: Contact Customer Service.
Question: SIM card is not recognized.
Answer 1: Check whether the SIM card is properly installed. For details, see Insert a SIM Card.
Answer 2: Check the SIM card for damage.
Answer 3: Check the SIM card IC chip for scratches/corrosion.
Answer 4: Dirty SIM card (particularly IC chip) may prevent recognition. Clean gently with a soft cloth.