wireless disconnected when its connect automatically

[mr3573]

My laptop have windows 7 home edition  operating system and recently I faced a strange problem. The wireless network connection will be disconnected if its setting configured to “connect automatically”. So I  have to uncheck the related box on “connection tab” of “ wireless network properties” and each time power on or restart laptop I should enter my password and connect again. I restore my laptop to earlier time when it was ok! but the problem not resolved.  Also updated driver for wireless network adapter and no difference .problem is remaining. Any suggestion would be appreciated.

[patio]

Some laptops have a switch to turn wireless off/on...check your Manual.

[mr3573]

Some laptops have a switch to turn wireless off/on...check your Manual.

my laptop worked correctly till one weeks ago and it dosnt have switch to turn on/off wireless. usually i turned on my laptop and when it was in wireless network range,it coonected to network automatically. but now, if i turn on , it will disconnect(yellow sing) and no internet access.