My service was switched on today. I followed all the instructions, but my internet still does not work. I have the message:
"Die Lrüfung see Internetverbindung ist fegeschlagen. Der fehlergrund konnte nicht ermittelt warden."
There is no more information and I do not know how to proceed. I have fritzbox 7530. If someone can help me, even call me in English, I would very much appreciate it.