ZyXEL Communications NWA5121-N, User Manual

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Chapter 19 Troubleshooting
NWA5000 / WAC6500 Series User’s Guide
184
19.5 Wireless Connections
I cannot access the NWA/WAC or ping any computer from the WLAN.
1
Make sure the wireless LAN (wireless radio) is enabled on the NWA/WAC.
2
Make sure the radio or at least one of the NWA/WAC’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 NWA/WAC’s active radio.
5
Make sure your computer (with a wireless adapter installed) is within the transmission range of the
NWA/WAC.
6
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.
1
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.
2
You must remove any spaces from the certificate’s filename before you can import the certificate.
3
Any certificate that you want to import has to be in one of these file formats: