My laptop cannot detect wireless connections
I have a Dell Inspiron 15R laptop, which I've been using for at least 4 months now and I have never tried to connect wirelessly before. But since last week, after visiting a fast food place with wireless connections, I noticed that my laptop cannot detect the connection. I thought maybe that the fast food place's server was down but it actually happened again, with another place with wireless connection.
I have not consulted professionals with this matter because I am afraid that the damage is beyond the warranty of the laptop. What do you think is wrong with this laptop and how can I fix it?








