I can't get a wireless connection on my lapto

Hello,
My laptop recently went under a RAM upgrade and someone put my computer in a "safe mode" to remove some viruses etc. I got my computer back and the wireless light is lit up on my computer showing that it should be picking up my router; however, nothing will come up. When I go to look at all the connections (which ususally shows me secured or not) I now have nothing available........
Did "safe mode" do something to my computer and/or how can I reconnect my wireless connection to pick up my router.
**And we have other devices picking up my connection so I know its my computer and NOT the router***

Any help would be greatly appreciated!!!!
Thanks,
Andria