Wifi not able to connet to wifi

So this happened to me a couple of days ago, before i was able to connect to my wifi network but now im not able to. When ever i type in my wifi password this grey wheel just shows up infront of my network name. when i click the arrow next to my network name only the IP adress and Subnet Mask are filled out with number and nothing else. If you could please help me out i would appreciate it!