Troubleshooting the IzoT Router

Following are some common problems and recommended solutions.

  1. Pressing the IzoT Router Service/Connect button does not result in a Service message.

    If you are using OpenLDV, do not use Unicode characters that cannot be represented as alphanumeric ASCII characters for the IzoT Network Service LonTalk/IP interfaces name.

    Make sure UDP port 2541 is open on your computer’s firewall.

  2. A device based on a Series 6000 chip, CPM 4200 Wi-Fi module, or the IzoT Device Stack EX doesn’t appear in the IzoT Router Device Browser Web page.

    Press the device's Connect or Service button or send a service message from the device application. There will be a delay while the IzoT Server discovers the device and adds it to the device list. Sending a service message can accelerate device discovery.

  3. Using 192.168.x.x IP addresses require special handling. IP addresses in the 192.168.x.x range are mapped to the ISO/IEC 14908-1 zero-length domain.

    The LonTalk/IP protocol maps 192.168.x.x addresses to the LonTalk zero length domain. If you are using a network management tool that specifies addresses as LonTalk address, you must configure the tool to use the zero-length domain to use IP addresses in the 192.169.x.x range. For example, the IzoT Net Server and IzoT Commissioning tool require network addresses to be specified as LonTalk addresses, with a LonTalk domain, subnet, and node ID. The IzoT Commissioning Tool does not have an interface to specify the zero-length domain, but you can change the network do use the zero-length domain using the OpenLNS Object Browser tool included with the IzoT Net Server. To do this, follow these steps:

    1. Create the network using the IzoT Commissioning Tool using any domain.

    2. Temporarily close the tool.

    3. Start the OpenLNS Object Browser from the Echelon IzoT Network Services Utilities start menu and click OK to dismiss the start dialog using the defaults.

    4. Press F8 to allow modifications, then expand the object view by double-clicking ObjectServer, then Networks, and open the newly created network by double-clicking its name.

    5. Double-click Systems and the System object underneath (which shares the name of your network).

    6. In the property pane on the right, double-click the DomainId property, clear the value shown in the New value field, and then click OK. This configures the network into the zero-length domain.

    7. Close the OpenLNS Object Browser.

    8. Re-open the IzoT Commissioning Tool.

    9. Proceed with network configuration and management.

    10. If you are using the IzoT Server, set the domainid property in the IzoT Server $IZOT/etc/lonbridge/config.xml file to use the zero-length domain with the following parameter:

      <domainid "0, 0 0 0">
  4. Check how much free space you have using ssh.

    Enter the following command at the console prompt: df

  5. Sometimes large log files or multiple archived files will use up the available flash memory.