Why Has My Wireless Adapter Disappeared. It seems the wifi adapter is missing altogether from the device manager. Scroll down to network adapters click on the sign to expand the entry list and find the WLAN adapter.
Scroll down to network adapters click on the sign to expand the entry list and find the WLAN adapter. I have an Acer Aspire 7740-5691 and It lets me connect using the cable but no wireless adapter to be found. In the warning box select Yes.
The Wireless network adapter went completely missing.
If your computer has a wireless key or button on or near the keyboard and the wireless activity light is off or amber in color then press the key or button to enable your wireless adapter. Answer 1 of 3. Under network adapter you should see your wireless adapter. Tried driver update with Driver Easy and DriverPack.
