Telekom Hybrid Router / Internet?

I moved into a new apartment 2 months ago and can't use my previous internet connection at Telekom at this address.

I had bisland a 50Mbit line and would now have to use a hybrid router.

Accordingly, I got a special right of termination and terminated my connection.

I have not completed a hybrid connection yet.

Now I have jokingly put my telecom router in the tin and have found that I have Internet.

Although super slow, because the router is not a hybrid router, but it is sufficient for Netflix and Co.

Now I've simply thought: I conclude a new Internet contract with a hybrid router from, but just auction me a hybrid router of the Telekom on eBay and then the connection would actually run it?

I mean, if I already have internet now, without a hybrid router?

Is there the connection from the previous tenant still switched?

Am I punishable if I put my own purchased router in the tin, it would work without having a contract with Telekom? Or does the Telekom switch off the connection simply sometime?

About the deposited "login" data you are identifiable, theoretically I could with my router a Stasse further micht with the friend plug in (also TELEKOM customer) and immediately "surfing".
However, access would be assigned to me because of the "login".