Technical data

Programming Fundamentals 28
Agilent N8201A Performance Downconverter Synthetic Instrument Module, 250 kHz to 26.5 GHz 611
• If a bad connection is revealed, try the following solutions:
• Make sure the instrument is turned on.
• Check the physical connection to the LAN.
• Make sure the internet (IP) Address of the instrument is set up correctly with the
webpage. Refer to the user’s guide for more information.
• When connecting to your instrument over a closed network (directly through a hub
or crossover cable) it may help to set the instrument to its default settings for subnet
mask and gateway. (subnet mask: 255.255.0.0, gateway 0.0.0.0)
• If the instrument and the computer are on different networks or subnets, make sure
the gateway address and subnet mask values are set correctly.
Cannot access the file system via ftp
• If you get a "connection refused" message, try the following solutions:
• If the power to the instrument 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 instrument. Refer to
“Cannot connect to the N8201A" on page 610.
Cannot telnet to the command parser port
• For a "connection refused" message:
• Check the telnet port number from the front panel keys.
• For a "connection timed out" or "no response from host" message:
• Verify the LAN connection between your computer and the instrument. Refer to "If
you cannot connect to the instrument" earlier in this section.
• For a "connection refused" or "no response from host" message:
• If the instrument was just turned on, make sure that you wait about 25 seconds
before attempting the connection.
An "operation timed-out" message
• Check the LAN connection between the computer and the instrument. Refer to “Cannot
connect to the N8201A" on page 610.
• Increase the file time-out value on your PC or workstation.
Cannot access internal web pages or import graphic images when using a
point-to-point connection
• Disable the use of proxy servers. You may have to specify this in a number of locations,
depending on the operating system and software you are using.