… first by Open system => Security Enabled system => Firewall. You should see the wireless network in the list and make sure it has good signal. If you’re done with those steps but the wireless still can’t connect then you need to update driver to the newest version for your wireless adaptor.
Here’s the link download the latest firmware of DSL modem driver.
… shortcut key combo before login:
- At the Vista’s Start Menu Search Bar typing:Type netplwiz and hit Enter. Now you should see the User Accounts dialog box is open.
- Select the Advanced tab and choose Secure logon.
Check require users to press Ctrl+Alt+Delete.
Click Apply and then reboot your computer.
After the computer is back on, now the old interface of NT4 / Windows 2000 with “USERNAME: [blank] PASSWORD: [blank]” is appear on your computer.
… trouble is Acer Travelmate 7560, occasionally the sleep switch is triggered by people who have magnets on their wrists (those copper oxygenating the bloodstream bracelets for instance).
So the last solution’s way is try updating the Acer Travelmate 7560 BIOS, it should be fix randomly drops into sleep mode. If the same
problem still appears, you could class it as a mainboard failure. So better send it back to the Acer service center for repair and asking
for a more expert technician to …