"Connections are not available."

[6M69I69B9]

So, with my notebook, sometimes all access to connections disappear and I have to disable and enable WLAN or troubleshoot it to get back the the availability of connections around me.  This problem started about a day ago.  Two days prior to that I used Malwarebytes to get rid of some stuff.  I don't know if that'd be the the cause, though. 

Why is this, and what can I do to avoid this?  I have online classes and using this notebook during quizzes is very risky or something that relies on constant connection.  I know I could use an ethernet cable, but I had no problem with being wireless until now, and I want to get back the convenience of going online freely without any problem.

[snoorkel]

If you haven't already, you could find the model name of the wireless adapter, then download+install some updated drivers for it