Try the Livecheck in your hood.. maybe there are several maintenance works or something. 

Thanks.  I can never find anything on this website.  I speak German, but I don’t speak o2 German.

Auf verlinkter Seite etwas scrollen und dann dort die genaue Adresse eingeben

Hello ​@lrhh,

welcome to our o2 Community

I have just checked the network coverage at your address; the 5G network there is not really sufficient to use it inside buildings:

Please try to see if it gets better if you turn off 5G and only use the LTE network, this should then work without interruptions.

If you have any further questions please let us know.

Best regards

Giulia