Telekom has approx. 40% market of broadband in Germany, so many Telekom users from Germany maybe as expected?
(Breitbandanschlüsse - Marktanteil Deutsche Telekom bis 2023 | Statista)
[added later:] It is really Telekom dependent, see my SOLVED FOR ME post in this thread and
[edited: added “in Germany” and “from Germany”]