Glad to hear you found the problem.
//Göran

Yes it seems very strange. I haven't heard this issue from other users of Raspberry Pi 3. Do you think you can log the EDP communication to see what the SPC-system is sending when you get the invalid the message? You just have to start the spc-web-gateway with the -d option and redirect the output t...

Hi Erwin!
Interesting issue . What I can see in the invalid message one parenthesis is missing. How often is this happening, all the time or only intermittently?
//Göran

Hi Rory,
It seems you have an issue with the ssl/tls credentials. Please check that config.json setup is in accordance with your gateway settings. Try also to replace localhost in config.json with your IP address.

//Goran

Probably you already have another instance of spc-web-gateway running or the configured port (default 8088) is already used by another process.

This user manual is valid from FW 1.3.9

2016 Mars 13 the Prowl cloud service was upgraded and the API used in the SPC Gateway Box stopped working,

If you would like to continue using Prowl, you need to upgrade the SPC Gateway firmware to >= 1.3.10.

Please let me know if you need a new firmware.

Goran

I have written a nodejs script that mirror SPC status to a MQTT broker, e.g Mosquitto.
You find the code here: https://github.com/Goran58/node-spc-mqtt

//Goran

I havn't published the new version on github. But please PM me if you are interested in the code.
//Goran

The product SPC Gateway Box consists of: The hardware Dragino MS14S including I/O module M32 The software SPC Gateway Documentation; User manual and API description (dowloadable from this site) 1 year support and updates Price for the SPC Gateway Box is 2000 SEK (220 Euro) incl VAT excl shipment. If...