Mqtt no connection

Riccardo Stronati shared this problem ago

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Hi I have successfully set up the mqtt network on zipabox. After some days I changed the broker ip from ip to hostname with the rest api and I cannot see anymore the box mqtt topics.

I tried to put the ip back but still no topics. I tried to remove the mqtt network but it seems impossible and I tried to reboot the zipabox.

Do you have any other advice? Is there a way to check the mqtt errors or system log?

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Replies (3)

John Rabbit ●

Hi,

Perhaps you can publish your mqtt configuration here (from the api) because it should work (hostname)

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Riccardo Stronati ●

Hi, thanks for you replay.

I managed by adding a new mqtt network with hostname which has deleted the previous one and start to work.

thanks for your time

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Bernd ●

Hey John, Riccardo

as I still have problems to get the mqtt working I am highly interested in your solution. What means "hostname"? Does it mean not to address

TCP://192.168.0.59:1883

but to use eg. TCP://openhab:1883 ? And, Riccardo, how did you manage to delete the privious, not working mqtt network? Please let me have a more detailled description of what you did.

Thanks

Bernd

Hey John, Riccardo

as I still have problems to get the mqtt working I am highly interested in your solution. What means "hostname"? Does it mean not to address

TCP://192.168.0.59:1883

but to use eg. TCP://openhab:1883 ? And, Riccardo, how did you manage to delete the privious, not working mqtt network? Please let me have a more detailled description of what you did.

Thanks

Bernd

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John Rabbit ●

Hi Bernd,

Hostname is a friendly name for your rpi. You will see this hostname when you make a connection to your rpi and can change that with openhabian-config. So hostname = the ip address of your ip board. The advantage of using a hostname is that when you change the ip-address of your rpi you don't have to change it in the MQTT setting.

When looking in the Zipabox I saw that you can create a new MQTT network. I have not tried it but i think this wil replace the existing one.

John

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