ZyXEL Communications NWA Series User Manual page 274

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.
For My Certificates, you can import a certificate that matches a corresponding certification request that
1
was generated by the Zyxel Device. 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.
2
Any certificate that you want to import has to be in one of these file formats:
3
• 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 Zyxel Device 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.
• Binary PKCS#12: This is a format for transferring public key and private key certificates.The private key
in a PKCS #12 file is within a password-encrypted envelope. The file's password is not connected to
your certificate's public or private passwords. Exporting a PKCS #12 file creates this and you must
provide it to decrypt the contents when you import the file into the Zyxel Device.
Note: Be careful not to convert a binary file to text during the transfer process. It is easy for this
to occur since many programs use text files by default.
Wireless clients are not being load balanced among my Zyxel Devices.
• Make sure that all the Zyxel Devices used by the wireless clients in question share the same SSID,
security, and radio settings.
• Make sure that all the Zyxel Devices are in the same broadcast domain.
• Make sure that the wireless clients are in range of the other Zyxel Devices; if they are only in range of a
single Zyxel Device, then load balancing may not be as effective.
Chapter 28 Troubleshooting
NWA/WAC/WAX Series User's Guide
274