ZyXEL Communications ZyXEL ZyAIR B-4000 Quick Installation Manual page 23

PROBLEM
Cannot access the
ZyAIR from the LAN.
Cannot ping any
computer on the
LAN.
Cannot ping any
computer on the
WLAN
Cannot get a WAN
IP address from the
ISP.
Cannot access the
Internet.
ZyAIR B-4000
Table 4 Troubleshooting
Check the cable connection between the ZyAIR and your computer or hub. Refer to
section 1.1 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.
If the LAN LEDs are all off, check the cable connections between the ZyAIR and your
LAN computers.
Verify that the IP address, subnet mask of the ZyAIR and the LAN computers are in
the same IP address range.
Make sure the wireless card is properly inserted in the ZyAIR and the WIRELESS
LED is on.
Make sure the wireless card on the wireless client is working properly.
Check that both the ZyAIR and wireless client(s) are using the same ESSID, channel
and WEP key (if WEP encryption is activated).
Check your Internet connection settings (refer to section 3.2).
You need a user name and password if you're using PPPoE or PPPoA
encapsulation. Make sure that you have entered the correct Service Name (PPPoE
encapsulation only), User Name 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
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