Troubleshooting - ZyXEL Communications ZyAIR G-4100 Quick Start Manual

5 Troubleshooting

PROBLEM
None of the LEDs
turn on when you
turn on the ZyAIR.
Cannot access the
ZyAIR from the LAN.
Cannot get a WAN
IP address from the
ISP.
Cannot access the
Internet.
Procedure to View Your Product's Certifications
1. Go to www.zyxel.com.
2. Select your product from the drop-down list box on the ZyXEL home page to go to that
product's page.
3. Select the certification you wish to view from this page.
ZyAIR G-4100
Table 4 Troubleshooting
Make sure that you have the correct power adaptor connected to the ZyAIR and
plugged in to an appropriate power source. Check all cable connections.
If the LEDs still do not turn on, you may have a hardware problem. In this case, you
should contact your local vendor.
Check the cable connection between the ZyAIR and your computer or hub. Refer to
section 1.2 for details.
Ping the ZyAIR from a LAN computer. Make sure your computer's Ethernet adapter
is installed and functioning properly.
Make sure that the IP address and the subnet mask of the ZyAIR and your
computer(s) are on the same subnet.
Check your Internet connection settings (refer to section 3.2).
You need a user name and password if you're using PPPoE or PPTP encapsulation.
Make sure that you have entered the correct Service Name (PPPoE encapsulation
only), username and password (the username and password are case sensitive).
Refer to section 3.2 for more information.
Check your Internet connection settings (refer to section 3.2).
Make sure you entered the correct user name and password.
For wireless clients, check that both the ZyAIR and wireless client(s) are using the
same ESSID, channel and WEP keys (if WEP encryption is activated).
CORRECTIVE ACTION
26