HP Jetdirect 610n Hardware Installation Manual page 25

Try the following troubleshooting procedures:
Verify cabling connections.
Configure the print server's 10/100TX link setting directly (for
example, using the EIO menu on the printer's control panel).
Verify that the configuration of the connecting network device
(such as a network switch) matches. For example, if you set the
print server for 100Base-TX Full-Duplex operation, the port on
the network switch must also be set to 100Base-TX Full-Duplex
operation. Power-cycle the printer to reinitialize the setting.
On the Jetdirect Configuration Page, compare your configuration
for the following parameters:
Parameter
PORT SELECT:
PORT CONFIG:
AUTONEGOTIATION:
For other configuration parameters and messages on the Jetdirect
Configuration Page, refer to the applicable HP Jetdirect
Administrator's Guide provided on the HP Jetdirect CD-ROM.
ENWW
Expected Messages for 10/100TX Cards
RJ-45
100TX HALF, 100TX FULL, 10BASE-T HALF,
10BASE-T FULL
ON (Autonegotiation is enabled), or
OFF (Autonegotiation is disabled, 10/100TX
configuration has been manually set)
10/100Base-TX Link Configuration 3-25