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Hi,

when trying to upgrade mqtt to latest version it failed and the existing mqtt dissapeared, after reboot the login to webinterface stopped working.. I've tried resetting but when trying to install mqtt i get the same error and the webUI breaks again, this time webUI worked after a reboot, but still unable to install mqtt.. any solution on how to restore the functionality?

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Hi, my advise is that you can try updating the firmware, usually this kind of error could be resolved after updating the firmware as the newer version of MQTT could cause compatibility issue with the old firmware.
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I did have the latest FW available at the time, but a couple of days ago a new release was available so updating today solved the issue

thanks for making me check that again :)