HP Ew2400 - JetDirect Print Server Administrator's Manual page 210

Table 9.3 802.11 Wireless Settings (3 of 3)
Message
Channel
Authentication Type
Encryption Type
ENWW
Description
Specifies the radio frequency channel that the print server
sensed and configured for communication on the network.
Because it was automatically sensed from the network, this
channel may differ from the user-configured channel (which
is only used for broadcasts if the specified network/SSID is
not found).
Channel number values 1 through14 may be displayed. The
allowed channels are country/region-dependent.
Identifies the authentication method configured on the
Jetdirect print server. It must match the method used on the
network to which the print server will connect.
Open System: Positive validation of a device's identification
is not required for network access unless the network
requires EAP authentication. An authentication failure may
indicate that an EAP authentication server has rejected
network access.
Shared Key: Each device on the network must be configured
with a shared secret WEP key to gain access to the network.
Authentication failures for the Jetdirect print server may
arise if the installed key is faulty, or the wrong key is active
(when multiple keys are configured and stored on the print
server).
WPA-PSK: For enhanced security, Wi-Fi Protected Access
using a Pre-shared key is configured, typically when the use
of an authentication server is not supported. The
Pre-shared key is generated by the print server through a
user-specified network pass-phrase configured on the print
server.
Specifies the level of encryption configured on the Jetdirect
print server.
64-bit WEP: A user-specified static 40/64-bit WEP
encryption key has been configured using 5 alphanumeric
ASCII characters or 10 hexadecimal digits.
128-bit WEP: A user-specified static 104/128-bit WEP
encryption key has been configured using 13 alphanumeric
ASCII characters or 26 hexadecimal digits.
Dynamic: WPA dynamic encryption protocols are being
used.
None: Encryption keys have not been configured.
HP Jetdirect Configuration Page 210