Problems connecting to FritzBox7490 with FritzSmart

[HarryT]

Hi

I have a complete fresh installation, did an update on fhem and know get the error:

2026.10.04 12:18:18 2: [FritzBox||0.0.0.0|open_Web_Connection.18180] - SIGNIFICANT:Web connection could not be established. Please check your credentials (password, user).
2026.10.04 12:18:18 2: [FritzBox||0.0.0.0|Helper_retMsg.2763] - SIGNIFICANT:location: 3049 | Msg: ERROR: Web connection could not be established. Please check your credentials (password, user).
 

My fhem.cfg is a copy of the one used in another raspberrypi.


The current installation runs, without problems, on a raspberrypi 3 and this test on a raspberrypi 4.

It might be important to state that fhem on the raspberrypi-3 is running and has a connection to the same fritzbox.

Anybody an idea how to solve this?

Thanks

[HarryT]

I forget to tell:

My definition in fhem.cfg

define FritzBox FritzSmart 172.xxx.xxx.xxx
setuuid FritzBox xxxxxxxxxxx
attr FritzBox INTERVAL 300
attr FritzBox room Hardware
attr FritzBox verbose 3

And of course I did a
set FritzBox password xxxxx

which results in the mentioned errormessage in the logging

[TomLee]

Hello,

your definition has no boxUser. Is your box running Fritz!OS below 7.25, and is that why you left it out? With 7.25 or newer, a user is required:

Code Auswählen Erweitern

attr FritzBox boxUser <your box user>.

[HarryT]

Hello,

your definition has no boxUser. Is your box running Fritz!OS below 7.25, and is that why you left it out? With 7.25 or newer, a user is required:

Code Auswählen Erweitern

attr FritzBox boxUser <your box user>.

Thanks TomLee, your suggestion is correct. I use Fritz!OS 7.62 and need a user in the fhem.cfg.

For other people running in the same issue:
From Fritz!OS 7.25 the OS itself creates/uses a user, but you don't need it when you login the FritzBox GUI.
You can find the user in the
Fritzbox->
  System->
    Fritz!Box-benutzer
      then look for a user you didn't create yourself.


Problem solved