Hello. I have a problem with my dell Inspiron 3542 laptop with windows 8.1 64bit. I see networks but i can't connect to them. I tried to connect using linux live and it worked so it's windows problem. It's not my laptop so I don't know how it happend.
Have you tried updating the wireless card drivers? It should either ship with DW 1704/1705. You can also try running the built-in wireless troubleshooter. That should fix most connectivity issues. If this fails to resolve the issue, you can do a system restore to a point the issue didn't exist. However, I would suggest the latter after you have taken a backup of your personal files.