Everything was working just fine until I followed the instructions here .Now the driver seems to be there but for some unknown reason the wireless card cannot connect to any network.
lspci | grep Network
Network controller: Realtek Semiconductor Co., Ltd. RTL8723AE PCIe Wireless Network Adapter
here is the results of running iwconfig
wlan0 IEEE 802.11bgn ESSID:"SSID-E5172-DC7B"
Mode:Managed Frequency:2.462 GHz Access Point: Not-Associated
Retry long limit:7 RTS thr=2347 B Fragment thr:off Encryption key:off Power Management:off
I was thinking ,when I first installed ubuntu 13.04 , ubuntu automatically installed the right network drivers.So,can I make it do that without having to reinstall it again??