MQTT Password length only 31 chars possible

[Chrischi-]

MQTT connect with user + password not possible

Mosquitto MQTT Broker Log:
1660944902: New connection from 172.16.0.29:55936 on port 1883.
1660944902: Client disconnected, not authorised.

MQTT Password length only 31 chars possible
Everything after 31 characters is truncated and not saved.

I have tested all versions from 5.5 to 5.14 without success. I had not yet time to look for the issue in the source.

[stefan123t]

Most likely a one off limitation as we are writing only 32 chars into EEPROM we may miss the \0 String ending. We had this before for WiFi Password too see #11

[Chrischi-]

Brief additional info:
Login is not possible even with shorter password.
However, a MQTT listener without authentication works without problems.

Tested up to 5.15

[aschiffler]

Will leave this open for the next release >0.5.16

[Chrischi-]

Maybe it was me, but with 0.5.16 I have no more problems logging in.

However, the issue with the password length still exists.

[aschiffler]

Close this bc. password length of 31 characters shall be sufficient.

[Chrischi-]

@aschiffler
OK, then I would also include the maximum password length somewhere in the documentation. Otherwise, this issue will surely repeat itself at some point.