I have no wireless network when I wake up my computer

If you have suspended your computer, or it has hibernated, you may find that your wireless internet connection does not work when you resume it again. This happens when the driver for the wireless device does not fully support certain power saving features. Typically, the wireless connection fails to turn on properly when the computer is resumed.

If this happens, try switching your wireless off and then back on again:

  1. Click the icon at the very right of the menu bar and select System Settings

  2. Open Network and select the Wireless tab

  3. Switch the wireless off and then on again

  4. If the wireless still does not work, switch on Airplane Mode and then switch it off again

If this doesn't work, restarting your computer should make the wireless work again.