How to store a wifi password? My previous phone was saving automatically my wifi password.  I now have a LG OPTIMUS L1 II, but it is asking for the password each time.

Is there a way to tell them to save it?
The phone should automatically remember all previous connected wi-fi networks. Please verify these steps : 


When you disconnect from the network and it is not within reach will it remain in the networks list ?
When you connect to the network and tap the network is there a button that says "Forget network " or alike ?