Hello, 

I recently had Glasfaser installed in my residence and have not been able to get it to work due to an incorrect Glasfaser-ID on the box. I have tried to call the fiber hotline but unfortunately due to a mixture of my poor German and other complications, I am unable to get the issue resolved.

I am stuck at the very first step attempting to register my modem + id via the link (https://glasfaser.telekom.de/modem-ib/registration) sent to my email after the initial install. I am able to enter my modem number, but on the next screen it says my fiber ID of 072GXLT is invalid. Further complicating matters my telecommunications provider is 1&1 but the infrastructure provider is Telekom. As such I don't have a customer number with Telekom when I call the support line, only the order number and reference number generated when 1&1 contracted out the actual installation. Or should I be providing my 1&1 customer #?

Can someone help me figure out what the correct ID is or how to get it without having a customer #? Or is this purely a 1&1 problem?