Burning Series and other stream websites do not work?

I have the problem that I can no longer access streaming sites like Burning Series, movie4k or kinox. I suspect that there's a lock in the Wi-Fi, because I can watch these series on my laptop and mobile phone with a friend in the wireless without restrictions.

Does anyone have a suggestion regarding the problem?

PS: I love you

Do you use Vodafone? Currently Vodafone tries to block all stream pages. I'm at Telekom and when I go to SerienStream.to the following message is displayed:

Yes, I use Vodafone.

Then you know what it is. Unfortunately, you can't do anything about it: /