Chapter 22 Troubleshooting
NWA / WAC Series User’s Guide
208
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:
• Binary X.509: This is an ITU-T recommendation that defines the formats for X.509 certificates.
• PEM (Base-64) encoded X.509: This Privacy Enhanced Mail format uses lowercase letters, uppercase
letters and numerals to convert a binary X.509 certificate into a printable form.
• Binary PKCS#7: This is a standard that defines the general syntax for data (including digital signatures)
that may be encrypted. A PKCS #7 file is used to transfer a public key certificate. The private key is not
included. The NWA/WAC currently allows the importation of a PKS#7 file that contains a single
certificate.
• PEM (Base-64) encoded PKCS#7: This Privacy Enhanced Mail (PEM) format uses lowercase letters,
uppercase letters and numerals to convert a binary PKCS#7 certificate into a printable form.
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