Internet connection issues

Email support, my internet has gone up & down multiple times in the last month. 

I have restarted my fritz box, checked cabling, and done all i can do from my end (I do this for a living). I nee someone to check my line, but I can’t call right now (because you don’t have good customer service & your closed, i also don’t know German).

please find a way to help , i’d like an email i can open a ticket

Edit: Thread title edited and thread moved to our english forums, 01.02.2026 o2 Michi