I have a Lenovo B50. For the last few weeks it hasn't been connecting properly. It's really frustrating. I turn it on, it connects, then disconnects after a few seconds/minutes. Other times, I connect it then, then it says it can't connect and then says no wireless networks are available. It is just really annoying. I've tried everything. It's not my internet's problem, my phone and everything else connects fine to it. I just can't seem to fix it. Please help me anyone?