Communications 7
Agilent 7697A Troubleshooting 81
To Troubleshoot LAN Connectivity Issues
1 At the HS front panel, show the current communications
options: Press [Options], then select Communications. The
display lists the HS IP address information. Note
especially:
• The number of Connections (devices communicating with
the HS). If the number of connections is greater than
expected, another data system or utility is
communicating with the HS.
• The DHCP setting. See “Using DHCP”.
• Record the HS IP address, subnet mask, and gateway.
2 Determine the IP addresses used in the configuration.
Each computer, printer, and instrument on the network
must have a unique IP address. Duplicated addresses
cause conflicts and disrupted communications. To
determine the current computer IP address:
a Click Start…> Run, then in the Open field type cmd. Click
OK.
b Type Ipconfig /all, then press [Enter]. The command lists
communications settings for all network devices in the
computer.
c Record the IP address, subnet mask, and gateway
settings for the PC.
d Check to make sure that you have the same class IP
address and the associated subnet mask in your
network.
3 Record the IP address, subnet mask, and gateway for the
instruments controlled by the data system.
• If using many Agilent instruments (most MS and MSDs,
the 7697A, and the 6890N, 6850N, or 7890A GCs) the
IP address can be obtained from the front keypad.
• For other instrument types, or for other addressing
protocols, see the data system documentation or the
instrument documentation.
• Also record IP addresses for other local devices, such
as networked printers.
4 Compare the collected IP addresses. Make sure that the IP
addresses entered into the data system match the IP
addresses used for the instruments.
5 Check cables and LAN LEDs at each device. Ensure that
all the network cables are plugged in tightly at both ends.
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