Minecraft launcher cant connect to internet

Hello! My minecraft launcher cant connect to the internet. I have tried to reintall it and that works once, so first time after reinstall it works as usuall, but if i close everything and then try to open it again, then it does not work, I have no clue what do to anymore. I have tried many diffrent things that according to diffrent forums should work. But the problem remains. 

 

To clarify, i can only play offline and not online!