MQTT: Error - Not connected to MQTT server - message not sent

[lgeitner]

Hi,

I have just upgraded from CumulusMX 3.14.1 b3160 to CumulusMX 3.25.0 b3241. My MQTT messages were working on 3.14.1 b3160. I am receiving the following error message on 3.25.0 b3241

2023-05-09 13:55:02.851 MQTT: Using template - mqtt/DataUpdateTemplate.txt
2023-05-09 13:55:02.853 MQTT: Error - Not connected to MQTT server - message not sent

Any suggestions on how to troubleshot this?

Thank You,
Lance

[lgeitner]

Here is some additional information from the log files

2023-05-09 15:57:05.070 MQTT: Using template - mqtt/DataUpdateTemplate.txt
2023-05-09 15:57:05.071 MQTT: publishing to topic 'CumulusMXKitchen/DataUpdate', message '{"date":"09/05/2023","time":"15:57:05","battery":"4.76","transmitterbat":"ok","outdoortemp":"68.1","indoortemp":"76.0","outdoorhum":"29","indoorhum":"39","dewpoint":"34.6","pressure":"29.98","wlatest":"2","wspeed":"3","wgust":"6","windTM":"6","wgustTM":"11","SystemUpTime":"0 days 2 hours","ProgramUpTime":"0 days 2 hours","CPUTemp":"120.5"}'
2023-05-09 15:57:05.071 MQTT: Error - Not connected to MQTT server - message not sent

[lgeitner]

I also wanted to mention I was previously using a 32 bit Raspberry PI OS on a Raspberry PI 4 B. I started with a clean install of Raspberry PI 64 Bit OS (2023-05-03-raspios-bullseye-arm64.img.xz). Since cumulusmx is now 64 bit capable. I have Mono version 6.8.0.105 (Debian 6.8.0.105+dfsg-3.3~deb11u1 Sat Feb 18 21:38:24 UTC 2023) installed.

[lgeitner]

I was able to resolve the error by changing Internet Settings > MQTT > Server Name: from xxx.xxx.xxx.xxx to homeassistant.local.

Not really sure why that fixed it!

[mcrossley]

Me neither, but that was quite an upgrade jump. The MQTT library CMX uses went from version 3.0.16 to 4.1.4 between those builds.