Offline

I tried everything to find out why, but my game tells me I am offline since months. I wanna use the gallery too bad, but I can't because It will search for a connection, until I stop it. I once tried to let It search for 3 hours, carrying the MacBook through the house, ending up placing it exactly next to the wifi router, Notihing. I deleted and installed again, searched the internet for ideas and tried a few, an still found no conclusion for the problem. When I tried to contact support about it, I ended up here. Maybe someone can help