Why cant the window connect to wireless connect to full signal

[frolik009]

Hello,
Network sharing centre shows that wireless connection signal is excellent but when I connect to that network, the window shows it can't connect. Why? The network is unsecured network and the laptop is Dell inspiron 1440.

 

[lyleb]

May be MAC filtering like I do.

 

[frolik009]

May be MAC filtering like I do.

Would you mind telling me how did u solved the problem?