Without the correct driver, your laptop's operating system (like Windows XP, Vista, or 7) won't know how to use the wireless card. Common signs that your driver is missing or outdated include:
Frequent or extremely slow wireless speeds. How to Find and Install the Driver Toshiba Satellite Pa3489u-1mpc Driver
If the driver is installed but you still can't connect, try these quick fixes: Without the correct driver, your laptop's operating system
If your laptop still has its original software, you can use the Toshiba Service Station utility to automatically check for and install the latest updates. Without the correct driver
Enter this model on the support site to get a list of all compatible drivers.
A next to "Network Controller" in the Windows Device Manager .