Currently, I am feeling very sad.
About 6 months ago, I bought a wireless laptop. Once I was using it at home and it miracously found a wireless network. After that time I could access Internet through this wireless connection. Life couldn't be happier.
But since last week, I cannot use this wireless connection. My laptop finds this connection, but cannot communicate with it. Now I can also see a 'security-lock' icon on this connection. In past, I did not use to see this icon. My fear is my neighbour may have enabled security on this wireless connection.
So I am here to ask your assistance. What can I do that would allow me to use this wireless connection again? Any other resource I should read?