I have a Toshiba lap top A 105. I have lost my internet
It is possible to disable the wireless connection with the keyboard. Try the combination of Fn and F8 buttons (this is a common Toshiba shortcut) to turn it back on. If that doesn't work, look at your Network Connections (through the Control Panel, assuming a Windows OS, if needed). Check the settings and if it is enabled. In the device manager, check if the wireless adapter has an exclamation point in a yellow triangle. If you have the exclamation point try letting Windows repair the driver. (You may need to access the Toshiba website for the correct driver. Either use a different machine and put the driver on a disc or USB driver or your machine's wired connection.) If that tells you it has no problems, remove the wireless connection (and uninstall the driver) and reboot the computer and it should see new hardware and start reinstalling the driver. Then you can try to establish a new wireless connection.
If the above solutions do not help, it's likely to be a hardware failure. You could get a new wireless adapter (USB or an appropriate card for your laptop add-on card slot), use the wired network (if that has worked), or consider a new machine.
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