At home I use a direct wired Ethernet connection and elsewhere WiFi to a local hub. The computer must have a receiver-transmitter modem that connects it to hubs which doesn’t seem to be woorking.  In the past I clicked ‘Wireless Network Connection’ and got the list of local hubs.  Now clicking ‘Wireless Network Connection’ I GET a box titled Wireless Network Connection displaying, “Enabling…” and then quickly displays, “Connection failed!” and then disappears.
I used to have a controller on my start list that let me enable/disable WiFi but it was accidentally deleted.
I tried System Restore, but for all dates it only stated “Your Computer cannot be restored to the [date given] System Checkpoint” –or –if not a System Checkpoint, then no explanation.
On clicking Dec 20 in System Restore these notes appeared:
   8:36 pm Removed Digital Line Detect
   8:34 pm Removed Get High Speed Internet
   4:42 am Remove EducateU
   4:39 am Configured Broadband Management Programs 2
It’s possible that on Dec 20 I ran a copy of Regwork and picked up some kind if virus – but that’s just a guess.
If you're on Windows XP, go to Start > Connect To > Show All Connections.

See if your wireless ADAPTER is disabled. If it is, try right clicking it and enabling it. (Although it seems that it's disabled and has a problem enabling)Thanks for the 'Right Click' suggestion to try to enable, but unfortunately it doesn't work.  Got the same BOXES as described above.  Could the modem be damaged?check for wi-fi driver (Un-Install-restart lap-Install) or wi-fi card has to replace..you have yo contact to Service centre of manufacturer..I hope it works...ridhwanridwhan, thanks for the suggestion, but I don't understand what I should un-install and then install after restart. Also, I don't know where to look for the WiFi driver. EvAre you on Win 7? Might wanna see here --> http://www.howtogeek.com/howto/27067/change-wireless-network-priority-to-make-windows-7-choose-the-right-network-first/Thanks for the idea and REFERENCE, but I STILL have XP - considering an update.Network driver