wireless nowork

[gearoidmuldowney]

Hi all. I have a vgn-a517b. For some reason it wont detect a wireless router I know is working perfectly. It used to connect to this network perfectly. All I changed within the computer is to upgrade the ram. I have made sure the network card is switched on both within the networkcard wireless options and the switch on the computer itself. I have also tried upgrading the network card driver and reinstalling the original. I normally use a 3g wireless sim router to connect to the internet could this have anything to do with it. Or could I have disconnected somthing when I replace the ram.
ANy help would be great.

[Blencogo]

Hi gearoidmuldowney and welcome.

I find this guide useful.

http://www.home-network-help.com/wireless-adapter.html

Give it a try and come back if it doesn't work and we will look at other possibilities.