ZyXEL Communications ZyXEL AG-120 7.3 Problem with the Link Quality, 7.4 Problems Communicating With Other Computers

ZyXEL AG-120 User’s Guide

7.3 Problem with the Link Quality

Table 22 Troubleshooting Link Quality

PROBLEM	CORRECTIVE ACTION
The link quality	Search and connect to another AP with a better link quality using the Site Survey
and/or signal	screen.
strength is poor all	Move your computer closer to the AP or the peer computer(s) within the
the time.	transmission range.
	There may be too much radio interference (for example microwave or another AP
	using the same channel) around your wireless network. Lower the output power of
	each AP.
	Make sure there are not too many wireless stations connected to a wireless
	network.

7.4 Problems Communicating With Other Computers

Table 23 Troubleshooting Communication Problem

PROBLEM	CORRECTIVE ACTION
In wireless station	In Infrastructure Mode
mode, the	• Make sure that the AP and the associated computers are turned on and
computer with the
	working properly.
AG-120 installed
	• Make sure the AG-120 computer and the associated AP use the same SSID.
cannot
	• Change the AP and the associated wireless clients to use another radio
communicate with
the other	channel if interference is high.
computer(s).	• 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 AG-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.
In access point	Verify that the computer with the AG-120 installed is turned on.
mode, the wireless	Make sure the wireless station(s) uses the same SSID as the AG-120.
station(s) cannot	Make sure the wireless station(s) uses the same security settings.
associate to the
	Verify that the wireless station(s) is not blocked in the MAC Filter screen.
AG-120.

78 Chapter 7 Troubleshooting