Probably due to age, the fiber optic cables fell off the welded connectors in the cabinet in a chain reaction. As a result, the switches failed one after the other tonight. A recent investment by Selfnet has now paid off very well. We recently got our own fiber optic splicing device. With it, the problem could be repaired at short notice in an emergency solution. Without our own device, the outage could have continued until after the weekend. We will now order new material and then install the cable properly again, so that it will hopefully work again for 20 years.