HP XW3400 - Manual (Page 157)

Network controller stops working without apparent cause.
Cause Solution
The files containing the network drivers are corrupted. Download the network drivers from http://www.hp.com and
reinstall them.
The cable is not securely connected. Ensure that the cable is securely attached to the network
connector and that the other end of the cable is securely
attached to the correct device.
The network controller is defective. Replace the network controller.
New network card will not boot.
Cause Solution
New network card may be defective or may not meet industry-
standard specifications.
Install a working, industry-standard NIC, or change the boot
sequence to boot from another source.
Cannot connect to network server when attempting Remote System Installation.
Cause Solution
The network controller is not configured properly. Verify Network Connectivity, that a DHCP Server is present, and
that the Remote System Installation Server contains the NIC
drivers for your NIC.
System setup utility reports unprogrammed EEPROM.
Cause Solution
Unprogrammed EEPROM. Contact HP.
Table D-12 Solving Network Problems (continued)
ENWW Solving network problems 147