HP Jetdirect 280m - 802.11b Wireless Print Server User Manual page 77

HP Jetdirect 280m user's guide
Problems during normal operation
1. IP address of printer changed. If your printer gets its IP address
from a DHCP server -- including a residential gateway -- and the print
server's power is removed (print server unplugged or printer power
unplugged), the print server may receive a new IP address from the
DHCP server when its power is applied again. In that case, computers
printing to the printer's old IP address will not be able to find the
printer. Use the Install Network Printer Wizard to re-install the
printer on each of the computer on the network. Also consider
assigning a static IP address to the printer, if possible, to prevent
recurrence of this problem. (If you're going to change to a static IP
address on the printer, do that before you re-install the printer on the
computers.)
2. Network security configuration changed. If your network
administrator changes your network's encryption keys periodically to
increase network security, make sure that you change the printer's
keys when the network's keys change. (If the network access point
and the computers change but the printer does not, the printer is no
longer on the network.)
If these quick checks don't point to your problem, use the full diagnostic
procedure, below.
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Make sure that you reconfigured your computer at the end of
the Wireless Setup Wizard. When you use the Wizard, you start
by changing your computer's configuration so it can talk to the
unconfigured print server. At the end of the Wizard, you must
change your computer's configuration back to its original
settings, so it can talk on your network. The Wizard tries to
make those configuration changes for you, but it can't make
them in all cases. If you had to make the first set of changes
manually, you will also have to make the second set of changes
manually. (Use your wireless card's configuration utility or
Windows XP to check and change these settings.) If you didn't
reconfigure, your computer is not on the same network as your
printer, so it can't print to it.
Make sure that you completed both the Wireless Setup Wizard
and the Install Network Printer Wizard. The first puts the
computer on your network, the second sets up the print path
from your computer to the printer.