Network problems¶

• <link linkend="instlT_network">Leginon not seeing the microscope host</link>

Microscope host that
runs Leginon client does not appear in the Launcher list on the Leginon processing
computer¶

<title>Possible reasons:</title>

• Host files are not configured properly so that the computers can not commnuicate
  by specifying the hostname.

• Connection is refused by one of the computers involved. This might be caused by a
  firewall or a inactive server.

<title>Testing and Solutions:</title>

• <link linkend="network_tests">Test network connection</link> with test scripts
  test1.py and test2.py as described in the "Start Leginon" chapter. Various solutions
  are listed in the same section.

For more discussion, see leginon bulletin board "thread on network
problems":http://emg.nysbc.org/bb/viewtopic.php?t=7 .