ZyXEL ZYAIR B-4000 Manuale Utente

ZyAIR B-4000 

21 

Cannot ping any 
computer on the 
LAN. 

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. 

Cannot ping any 
computer on the 
WLAN 

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 keys (if WEP encryption is activated).  

Cannot get a WAN 
IP address from the 
ISP. 

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. 

Cannot access the 
Internet. 

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).