Need help on fixing safari internet on mac!

[Tmac500]

Hello! I have had my mac for a few months, and a few weeks ago whenever I open up the internet I have to type in a wireless code. I click on the network diagonostics and type in the password, then it says your internet appears to be working correctly.
Please let me know how to fix this so I don't have to type in the password everytime I go on the internet! Thanks!
-Tmac500

I click on the remember network but it doesn't work. Anyother ideas? thanks so much!

 

[1ne]

Did you saved your password in network?

 

[-tWv-]

Did you check the "remember network" box. This will remember the password in your keychain. Then you won't have to type in the password for your router every time you try to connect.