Network - MMU (troubleshoot Internet Connection)

This article covers potential internet connection issues, you may experience with the Tigo Maximizer Management Unit (MMU).

The Tigo MMU is the first generation of data logger, and it requires a wired Ethernet connection (no WiFi offered). This makes troubleshooting fairly simple, as it can be broken down to a few steps:

• Check the Cable Connection and Network Extension Devices
• Check the Router's Connection with the Internet
• Run Re-Start Command
• Run Network Test

Check the Cable Connection and Network Extension Devices

A non-communicating MMU may simply be due to a disconnected ethernet cable, or an unpaired network extension device (PLC, WiFi Relay, etc). The first thing you wan to do is check to make sure there's an ethernet cable going from the MMU, to your home's internet router. 

If the MMU is properly connected, check to see what it is connected to. If it is plugged into a linked network extension device, you will want to check to see that the extension device is still paired to the router. 

• If Ethernet cable is connected to a WiFi Extender 
  the extender may have become unpaired with the network
  Follow manufacturer's instructions, to reconnect
• If Ethernet cable is connected to a PLC Adapter 
  PLC adapters are a common Ethernet solution. They plug directly into an outlet, and relay network signal over the existing electrical wiring in the house. 

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PLC adapters lose connection with each other during power outages. They can be reconnected by following the original manufacturer's pairing directions (found online). Simply enter the make and model of the PLC adapter into a web search, including terms like "reconnect" and "Pairing Directions." You will find many sites and even instructional videos to help you get the devices reconnected.

Check the Router's Connection with the Internet

A router can become disconnected with the internet, or even become sluggish and not recognize IP addresses. Try these steps to confirm the router is functioning as expected:

• Perform a Router re-start/power-cycle (allow up to 2 minutes for full reboot)
• Check the network speed with a computer or other internet connected device
• Check if the network router is configured for a static or dynamic IP address

If your settings are correct and you are still not passing data to the cloud, please contact your IT Administrator or Internet Service Provider (ISP). The service may not be allowing outbound access to the MMU (the network MAC ID of the MMU is the same as it's 12 digit Serial Number)

Run Re-Start Command

If your MMU is connected to a router, and you have good signal (but are still not able to get your MMU online), try a manual Re-Start Command by using the keys on the front of the MMU. This command will release any old cached information that may be interfering with your data transfers. 

• Press Menu Button (press Enter button)
• Press Down Arrow to: 2.Control (press Enter)
• Press Down Arrow to: 2.4 ReStart (press Enter)
• LCD displays "Are you sure?" (press Enter for "Yes")

Please perform these keypad functions, as simply unplugging the device does not refresh the processor cache. 

Run Network Test:

After restarting the MMU and the network, you may perform a Network Test to confirm success:

• Press Menu Button (press Enter button)
• Press Down Arrow to: 3.Network (press Enter)
• Press Down Arrow to: 3.2Network Test (press Enter)
• LCD displays "Are you sure?"(press Enter for "Yes")