I also live in Krausenstraße and have the same issue.
There is a Netzstörung and more specific a Rückwegstörer. The hotline told me, that they tried to solve it this week, but failed, because they could not get access to the building they assume the issue is located in. Supposedly the issue is in Oberwallstraße.
Currently they don't know, when it will be solved. Seems like a very fragile network architecture, if there can be one bad actor in the network and disrupt such a large part of it.
After a long struggle with the hotline (I will write about the details in another post), I bought a SIM card from Vodafone. They promised me to put 100GB on it. In the end it was only 50GB, but well, it will last for. 2-3 days...
So for anybody else having this problem, if you don't have, buy a 9,99€ SIM card, activate it. Then call 0800 5266625. When you are asked, why you are calling, say "Störung". Then say, "Internetstörung". After that they will ask for your birthdate. two digits for the day, two digits for the month and four digits for the year. Tell them about our case. They can then add the data to your Vodafone SIM card.
I had two agents who were unable to do this and send me in between different departments aka Zuständigkeitshölle. But the technical hotline is responsible for this. Their internal program to do this is called "Titan".
You can use the SIM card in a spare phone and open up a hotspot. If you happen to have a FritzBox and an you can also connect your phone to the fritz box and then configure the fritz box to use your fritz box. Then you can also use devices, that don't have a mobile phone connection. You. will find instructions on how to do this here: https://en.avm.de/service/fritzbox/fritzbox-6490-cable/knowledge-base/publication/show/76_Setting-up...
