Hey! I have a problem with my Ubuntu system. Wifi and ethernet is connected, when I type iwconfig command it displays but the internetdoes not work. Everything worked before. Iknow it's the system's fault, because on theother system (Windows) (dualboot) everythingworks without a problem. This is the secondtimethis has happened, the previous timereinstalling the system helped, but I don't wantto do that again. I searchedthe internet to find asolution, but nothing worked. Please help.