User`s guide

Chapter 7 Troubleshooting

N220 User’s Guide

7.2 Accessing the ZyXEL Utility

I cannot access the ZyXEL Utility

1 Make sure the N220 is properly inserted and the LEDs are on. Refer to the Quick

Start Guide for information on how to properly connect the N220.

2 Use the Device Manager to check for possible hardware conflicts. Click Start >

Settings > Control Panel > System > Hardware > Device Manager. Verify

the status of the N220 under Network Adapter (steps may vary depending on

the version of Windows).

3 Install the N220 on another computer.

4 If the error persists, you may have a hardware problem. In this case, you should

contact your vendor.

7.3 Link Quality

The link quality and/or signal strength is poor.

1 Scan for and connect to another AP with a better link quality using the Site

Survey screen.

2 Move your computer closer to the AP or the peer computer(s) within the

transmission range.

3 There may be too much radio interference (for example from a microwave oven,

or another AP using the same channel) around your wireless network. Lower the

output power of each AP.

4 Make sure there are not too many wireless stations connected to a wireless

network.