HP Ew2400 - JetDirect Print Server Administrator's Manual page 197

Unable to Communicate After Initial Setup
If you have successfully configured the HP Jetdirect wireless print
server with a network connection to your network, but your network
computers are unable to communicate with the printer (including
a "ping" command), try the following:
Print a Jetdirect configuration page and verify all configuration
settings for your network. Common errors include incorrect
entries for the following items:
Communication Mode (Ad Hoc or Infrastructure)
Network Name (SSID), which is case-sensitive
Authentication method
Encryption level, encryption key entries, or the specified
transmit key
IP address
BSSID (Basic Service Set Identifier), which distinguishes one
wireless LAN from another even though they have the same
SSID
Verify that the printer is within range of the network. See
"Improving Reception and
Use a wireless PC and its utilities to confirm the signal strength
at the printer's location. The detected signal strength should be
similar for the print server, as indicated on the HP Jetdirect
configuration page.
My Configured Channel Does Not Match the
Configuration Page
(Ad Hoc mode only) The HP configuration tools allow you to select
channel 10 or 11 (default) on the HP Jetdirect wireless print server.
This channel is only used by the print server to broadcast its
Network Name (SSID) if it fails to detect and join an existing
wireless network. If it is able to join a network, it will reconfigure
its channel to the one used by the network.
The Jetdirect configuration page will identify the network channel
actually being used on a network. It does not show the broadcast
channel used when a network is not detected.
ENWW
Performance" in this chapter.
Troubleshooting the HP Jetdirect Print Server 197