My wife's laptop is having trouble connecting to the WiFi in our house. It is a Toshiba that's a couple of years old running Windows 7. Has been running fine until this week. Router is unlikely the problem. The iPad, my laptop, our phones and our Wii can all connect and have full access. Her laptop accesses the router fine with a wired connection, however. Checked the obvious, done the iconfig thing and it doesn't help. Any ideas what to try next?