ZyXEL Communications G-120 Manual Do Utilizador

ZyXEL G-120 User’s Guide

72

Chapter 7 Troubleshooting

Table 22   Troubleshooting Communication Problems 

In wireless station 

mode, the 

computer with the 

G-120 installed 

cannot 

communicate with 

the other 

computer(s).

In Infrastructure Mode
•

Make sure that the AP and the associated computers are turned on and 

working properly.  

•

Make sure the G-120 computer and the associated AP use the same SSID.

•

Change the AP and the associated wireless clients to use another radio 

channel if interference is high.

•

Make sure that the computer and the AP share the same security option and 

key. Verify the settings in the Profile Security Setting screen.

•

If you are using WPA(2) or WPA(2)-PSK security, try changing your encryption 

type from TKIP to AES or vice versa.

In Ad-Hoc (IBSS) Mode
•

Verify that the peer computer(s) is turned on.

•

Make sure the G-120 computer and the peer computer(s) are using the same 

SSID and channel.

•

Make sure that the computer and the peer computer(s) share the same 

security settings.

•

Change the wireless clients to use another radio channel if interference is high.

When using the 

Windows XP 

configuration tool, 

the G-120 cannot 

scan for or 

connect to any 

access points.

The G-120 might still be operating in access point mode. This results when you set 

the G-120 to operate in access point mode using the ZyXEL utility, close the 

ZyXEL utility and then use the Windows XP configuration tool.
Before you use the Windows XP configuration tool, make sure you set the G-120 

to operate in station mode before you close and exit the ZyXEL utility.

In access point 

mode, the wireless 

station(s) cannot 

associate with the 

G-120.

•

Verify that the computer with the G-120 installed is turned on.

•

Make sure the wireless station(s) uses the same SSID as the G-120.

•

Make sure the wireless station(s) uses the same security settings.

•

Verify that the wireless station(s) is not blocked in the MAC Filter screen.