A wireless adaptor is a device installed on home computers that allows for wireless Internet access. A wireless network adaptor tunes in a wireless Internet signal and allows for Internet access without having to plug any Ethernet cables into the computer. Obviously, any malfunction of a computer's wireless card will cause a lack of wireless Internet connectivity. If you use a Toshiba Tecra wireless adaptor and are unable to connect to the Internet, you can diagnose and resolve to problem in just a few basic steps.
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Reset the wireless network by unplugging the power cords of your Internet modem as well as the wireless router that attaches to it. Count a full 30 seconds before plugging all power cords back in and allowing the network to reboot. Now try and reconnect to the wireless network. A wireless network in need of a reset is a much more common cause for lack of connectivity than a malfunctioning wireless card, so try to reconnect to the network after it has fully rebooted.
Unplug the Ethernet cable that connects your Internet modem to your wireless router and plug it into the Toshiba Tecra's Ethernet port. Again, reset the modem using the same procedure as described above and try to access the Internet again. If there is still no connectivity, the problem is likely with your Internet service or with the Tecra's Ethernet network adaptor. If you are not able to browse the Internet, some further troubleshooting on the Tecra's wireless card is necessary.
Open the Toshiba Tecra's device manager by right-clicking "My Computer" or "Computer" from the "Start" menu and choosing "Properties." The "Device Manager" button is located under the "Hardware" tab on the "System Properties" window.
Check for a problem with the wireless card by clicking the "+" next to "Network Adapters." Look for anything called "wireless adapter" and see if it has a "x," "?," or "!" showing over the name. If it does, you may need to update the software drivers for the wireless card (contact the manufacturer of the wireless card for help with this) or replace the card altogether.