The normal functioning state (is connected to Wifi, has access to the internet) of a BlackBox is that the LED on top of it is blinking slowly (breathing) Cyan color

In case GlobalReader Analytics Dashboard shows no data from the machine, go through the next steps.

1. Check the color of the machine on the Analytics Dashboard

   

   1. RED - Black Box is offline and unable to deliver data
   2. Yellow - BalckBox online. But no data received from the sensor or there is an ongoing interruption in the machine work
   3. Green - machine is working

2. Machine works but no data on Dashboard

   1. If the machine is working but data doesn't appear on graph, then check the cables of your sensor. In case of a physical sensor make sure that the light on the sensor is blinking when it has to blink. It is also important to observe that the sensor isn’t shifted, blocked or damaged

3. GlobalReader Black Box is offline

   1. If there is no LED light on on top of the BlackBox

      1. Make sure that there is current in the electrical socket - connect some other electrical device to it (for example: working lamp) or connect the Black Box to another plug where there is electric current
      2. Make sure that Black Box AC adapter works - connect power adapter from working GR device or extra DC adapter (12V, 2A) to the Black Box and then check again

   2. Cyan LED is blinking fast

      

      1. Some of the needed network TCP ports are closed. Configure firewall to allow the following TCP ports:

         • ports 5683, 443, 80
         • connections allowed admin.globalreader.eu, port 80 and 443
         • connections allowed api.globalreader.eu, port 80 and 443
         • connections allowed cloud.globalreader.eu, port 5683, 80 and 443
         • connections allowed gate.globalreader.eu, port 80 and 443

         How to verify that Cloud port 5683 is open?

         This port is used by the BlackBox to send keepalive to our servers, update the software and keep the internal clock of the BlackBox in sync (using standard Network Time Protocol NTP)

         On a computer that’s connected to the same Wifi network as the Blackbox

         1. Open URL http://cloud.globalreader.eu:5683/ in browser

         2. Verify the result

         Expected: The URL is opened. Browser shows error message like ERR_INVALID_HTTP_RESPONSE or response with some unicode characters means the port is opened

         Any message like NOT FOUND, TIME OUT means the port is closed

         

         In case this page results in such error configure router and/or firewall to allow TCP port 5683 cloud.globalreader.eu

         Testing with telnet

         telnet cloud.globalreader.eu 5683

         

      2. Restart Wifi router

   3. Green LED blinking fast shows that there is no WiFi connection - either WiFI credentials have not been saved to the Black Box or the Wifi router is not allowing the connection (for example: DHCP address is not being distributed).

      

      1. Check if the WiFi network is connectable from other devices - for example with a mobile phone
      2. Check Wifi credentials and reconfigure Wifi credentials on the Black Box if needed
      3. Check if WiFi signal strength is greater than -65 dB, if not add an access point to the Wifi network.
      4. The BlackBox can only connect to 2.4GHz Wifi. 5GHz Wifi is not supported. Verify that 2.4GHz Wifi network is available

   4. Restart BlackBox by removing power from it for a few seconds and then putting it back

   5. Any other color on the Black Box, restart it and if no change contact [email protected]