There were several reports of WiFi routers/ access points, which lost there connection and had to get restarted.
We are trying to fix this problems and did therefore some changes in the settings in the Hibuka/ Frantoesisches Viertel.
If your WiFi stopped to work today spontaneously, you had it misconfigured and were probably the reason why your room mates had problems.
Follow our manual to setup your WiFi and it should work fine again.
This post is also available in de_DE.