SmartServer Routers Stopped Working in an IzoT CT /IzoT Net Server Network after SmartServer Reboot

If the SmartServer router stops working in an IzoT CT or IzoT Net Server network following a SmartServer reboot, then the SmartServer may be configured for DMM (the default) instead of IMM.

In DMM, the SmartServer is the network integration tool. Therefore, if you commissioned the SmartServer routers in an IzoT CT/IzoT Net Server network, and the SmartServer reboots, then the SmartServer will see that its router configuration is not what is expected for DMM and it will re-commission it for DMM. As a result, your IzoT CT or IzoT Net Server network will lose all access to the SmartServer routers and edge devices that are connected to the SmartServer U60/U70 channels.

Changing back and forth between IMM and DMM is not supported. Therefore, you must first discern which mode of operation (DMM or IMM) your application requires and then maintain that mode. For IzoT CT and IzoT Net Server networks, when you are using the SmartServer routers, you will first need to change to IMM before commissioning the SmartServer routers in IzoT CT or IzoT Net Server. See the workaround below if you mistakenly used DMM.

Add a ferrite clamp onto the U60/U70 USB cable to reduce LON channel noise (similar to one used for the SmartPhone as seen here: https://www.usbfirewire.com/parts/rr-fh0-500b.html ).

Only SmartServer 3.50.026 and higher can be used for IP-852 routing. In prior releases, unplugging or re-plugging the Ethernet cable and possibly IP infrastructure issues could stop communication to external devices through U60s/U70s.   

Workaround

1. Backup any settings or files that are on the SmartServer. If you are only using the SmartServer for routing or RNI, then you do not need to backup anything.
   
   

2. Click the Reset To Defaults button (System Configuration page).
   
   

3. After the reset is done, optionally do another reboot of the SmartServer using the System Configuration page. This reboot will cause the SmartServer router neuron IDs to change.
   
   

4. Go to the CMS Devices widget, Segment Controller tab.
   
   

5. Select the Switch to LON Independent Management Mode (IMM) action.
   
   

6. Verify that the SmartServer is IMM mode.

   1. The CMS shows the IMM mode in the upper left-hand corner.

   2. The System Configuration page shows the LON Network Management Mode as Independent (IMM).
      
      

7. In IzoT CT/IzoT Net Server, decommission the SmartServer routers and do not save the neuron IDs.
   
   

8. In IzoT CT/IzoT Net Server, commission the SmartServer routers with the new neuron IDs using the SmartServer LON Configuration page.