ADSL2/2+ Modem Router
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Chapter 6. Appendix
Troubleshooting
Problem
Troubleshooting
Power Indicator Off
Check if the power adapter is connected properly.
Check if the power adapter is the correct one.
ADSL Off
Check if the ADSL cable connection is OK.
Check if the telephone line is OK.
Check the phone line cabling is OK.
LAN Off
Check if the Ethernet cable is OK.
Make sure the PC’s NIC indicator is ON.
Make sure the NIC works normally.
No Internet Access
Check all cabling.
Make sure the dial-up connection is established.
Make sure the user name and password are correct.
If the dial-up is OK, please make sure the network
settings of client devices such as PC’s, Web Cam’s,
VoIP Phones etc are configured correctly.
Please try opening different web pages.
See if you can Ping external addresses.
FAQ
Q: What are VPI, VCI?
A: VPI (Virtual Path Identifier) and VCI (Virtual Channel Identifier) are to
identify ATM terminal (ADSL) for DSLAM, usually provided the local
ISP.
Q: What related parameters are required from your ISP?
A: For Dial-up user: Connection protocol, User name, Password, Value of
VPI/VCI, Encapsulation mode etc.
Q: The firmware upgrade fails and I cannot access the Web-based
management interface?
A: Contact the support or after-sales service engineer of your dealer.
