The ping happens at a lower level than the IotaWatt firmware. It is handled by the WiFi stack running under the ESP8266/arduino core. So it will continue to maintain a connection and respond to pings regardless of the state of the IotaWatt firmware.
The red-red-red led sequence means the device encountered a fatal error, usually in startup. The most probable cause is that the config.txt file is damaged. I do what I can to insure the integrity of the card, but at the end of the day, there can be circumstances beyond my control.
In the issues posted a couple of days ago, you describe opening the box up and looking at the SD card on a PC. That’s fine, but understand that it’s easy to corrupt the SD file system if a strict protocol isn’t adhered to when removing and reinserting
For example the IotaWatt doesn’t know if the card is removed. If any changes to the file system are made while it is out, it may use blocks that are no longer free after reinsertion. I have seen this several times in my development haste.
The card is not meant to be removed. If it is, the device must be powered down for the duration of the removal and restarted after replacement.
The first place to look for the problem would be in the message log, which you cannot access, so you will have to power down the IoTaWatt, remove the SD card, and use that PC to look at the file /iotawatt/iotamsgs.txt. Post a zip of the file and I’ll take a look at it.
While you are there, look at the config.txt file and cut and paste the complete contents into a JSON checker like Json LINT. Click Validate Json and see if that’s OK. Post the config.
I’ll look at that stuff and get back to you.
If you are in a hurry, you could try loading a clean new SDcard with the contents of the SD directory on GitHub. You will lose your configuration, but that’s easily rebuilt.
Edit: looking at your posted shots, I had a few questions.
I see that you are using generic CT specifications. It looks like you have voltage type CTs. If so, have you removed the burden resistors in the IoTaWatt and have you respecified them as zero in the device manu?
Why do you have outputs defined as multiplied by voltage?