[freifunk-potsdam] Question about free wifi

Hi Friends,

I am a new Potsdamer coming here for study just 3 months ago. I have a laptop with Wireless capable. Now, I live in a room at Charlotten Strasse. At the very early days I came here My laptop could catch the signal from freifunk-potsdam so I could be very happy to surf Internet with that. But More than recent 1 month, I could not use the Internet with freifunk-potsdam anymore although my laptop could address the IP and DNS.

Could you please give me some guides about that?

Looking forward to hearing from you

All bests,

Viet Dung