User's Guide

Chapter 29 Troubleshooting
NWA/WAC/WAX Series User’s Guide
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5 If the problem continues, contact the network administrator or vendor.
29.5 WiFi Network
I cannot access the Zyxel Device or ping any computer from the WLAN.
1 Make sure the wireless LAN (wireless radio) is enabled on the Zyxel Device.
2 Make sure the radio or at least one of the Zyxel Device’s radios is operating in AP mode.
3 Make sure the wireless adapter (installed on your computer) is working properly.
4 Make sure the wireless adapter (installed on your computer) is IEEE 802.11 compatible and supports the
same wireless standard as the Zyxel Device’s active radio.
5 Make sure your computer (with a wireless adapter installed) is within the transmission range of the Zyxel
Device.
6 Check that both the Zyxel Device 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 import a certificate into the Zyxel Device.
1 For My Certificates, you can import a certificate that matches a corresponding certification request that
was generated by the Zyxel Device. You can also import a certificate in PKCS#12 format, including the
certificate’s public and private keys.
2 You must remove any spaces from the certificate’s filename before you can import the certificate.