My Telekom DSL connection was activated on 21 September, and it worked normally for the first few days. However, today the internet connection stopped working. The Wi-Fi is still available, but there is no internet access. The Speedport 7 is showing two yellow/orange lights, whereas previously only one green light was on.

I have already restarted the router, but the problem remains. Could you please check whether there is a problem with my DSL/internet connection?