Mqtt error 5

#1

my esp32 is broken.
I had to replace it.
But now THE NEWESP32 doest connect to the dashboard.
Error 5 appears - what to do?

#2

the possibility is some network firewall is blocking traffic to mqtt.mydevices.com or port 1883.

#3

Yes this is a possible idea - but bevor the ESP32 was broken, a good and stable connection to cayenne dashboard was there!

#4

well, then this esp32 might be also broken. can you test a basic MQTT code and see if the esp32 connects.

#5

Do you think that an ESP32 registered with Cayenne can easily be exchanged for another?
I am not sure whether Cayenne generates special hardware coding for the CLIENT-ID
when logging on.
Do you know anything about?

#6

you mean, you want ot transfer esp32 from one account to another?

#7

No, the problem is because of the original ESP32 is damaged.
The new one should use the exisiting account, and the exisiting Cayenne Device with all off my Custom Widgets - but this will be blocked from dashboard with these special ERROR 5.

#8

you can just use the old client id in the new esp32 with the same code and the old dashboard will work it. The error 5 is related tp something else. can you try creating a new device on the cayenne dashboard and see if it works.

#9

o.k. :grinning:
I’ll try and report later again

#10

Yes you are right! The old client id in the new esp32 with the same code works! :grinning:
My mistake was a initializing problem with the timer and interrupthandling using an NVS-RAM value wich wasn’t set correctly!!! I’am so sorry - thanks for your help

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