Agilent Technologies E4406A VSA Series Programmer's Manual page 118

Programming Fundamentals
Using the LAN to Control the Analyzer
You cannot connect to the analyzer
• If you suspect a bad LAN connection between your computer and
analyzer, you can verify the network connection by using the ping
command described later in this chapter or another similar echo
request utility.
• If a bad connection is revealed, try the following solutions:
— Make sure the analyzer is turned on.
— Check the physical connection to the LAN.
— Make sure the internet (IP) Address of the analyzer is set up
correctly in the LAN port setup menu. (Press
.)
Address
— If the analyzer and the computer are on different networks or
subnets, make sure the gateway address and subnet mask values
are set correctly. See "Troubleshooting Subnet Problems" earlier
in this chapter.
You cannot access the file system via ftp
• If you get a "connection refused" message, try the following
solutions:
— If the power to the analyzer was just turned on, make sure that
you wait about 25 seconds before attempting the connection.
• If you get a "connection timed out" message
— Verify the LAN connection between your computer and the
analyzer. Refer to "If you cannot connect to the analyzer" earlier
in this section.
You cannot telnet to the command parser port
• If you get a "connection refused" message
— Check the telnet port number from the front panel keys.
• If you get a "connection timed out" or "no response from host"
message
— Verify the LAN connection between your computer and the
analyzer. Refer to "If you cannot connect to the analyzer" earlier
in this section.
• If you get a "connection refused" or "no response from host" message
— If the analyzer was just turned on, make sure that you wait about
25 seconds before attempting the connection.
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System, Config I/O, IP
Chapter 2