ZyXEL Communications Corporation WAC6553D-E Manuel D’Utilisation

Chapter 19 Troubleshooting

NWA5000 / WAC6500 Series User’s Guide

I cannot access the NWA/WAC or ping any computer from the WLAN.

Make sure the wireless LAN (wireless radio) is enabled on the NWA/WAC.

Make sure the radio or at least one of the NWA/WAC’s radios is operating in AP mode.

Make sure the wireless adapter (installed on your computer) is working properly.

Make sure the wireless adapter (installed on your computer) is IEEE 802.11 compatible and 
supports the same wireless standard as the NWA/WAC’s active radio.

Make sure your computer (with a wireless adapter installed) is within the transmission range of the 
NWA/WAC.

Check that both the NWA/WAC and your computer are using the same wireless and wireless 
security settings.

Hackers have accessed my WEP-encrypted wireless LAN.

WEP is extremely insecure. Its encryption can be broken by an attacker, using widely-available 
software. It is strongly recommended that you use a more effective security mechanism. Use the 
strongest security mechanism that all the wireless devices in your network support. WPA2 or WPA2-
PSK is recommended.

The wireless security is not following the re-authentication timer setting I specified.

If a RADIUS server authenticates wireless stations, the re-authentication timer on the RADIUS 
server has priority. Change the RADIUS server’s configuration if you need to use a different re-
authentication timer setting.

I cannot get a certificate to import into the NWA/WAC.

For My Certificates, you can import a certificate that matches a corresponding certification 
request that was generated by the NWA/WAC. You can also import a certificate in PKCS#12 format, 
including the certificate’s public and private keys.

You must remove any spaces from the certificate’s filename before you can import the certificate.

Any certificate that you want to import has to be in one of these file formats: