No Wireless In Ubuntu 13.10

Question

When I upgraded to Ubuntu 13.10, I can't connect to wireless. The only thing I can connect to is ethernet, so please help me, What should I do?

Here is the output of the lspci -nnk | grep -i net -A2

00:19.0 ethernet controller [0200]:intel corporation 82579V Gigabit network connection [8086:1503] (rev 04) 
        subsystem: acer incorporated [ALI Device] [1025:8000] 
        Kernel driver in use : e100e

output of lsusb: 

Bus 002 Device 003: ID 046d:c31c Logitech, Inc. Keyboard K120 for Business
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 0bda:0152 Realtek Semiconductor Corp. Mass Storage Device
Bus 001 Device 040: ID 04e8:6863 Samsung Electronics Co., Ltd 
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 004: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
Bus 003 Device 003: ID 045e:070f Microsoft Corp. 
Bus 003 Device 002: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

UPDATE!

now i can connect to my wireless but i dont have internet acces + when i reboot the wireless go away please help. Thanks for the help so far :)

iwconfig:

viktor@Viktor-Dator:~$ iwconfig
usb0      no wireless extensions.

eth0      no wireless extensions.

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr=2347 B   Fragment thr:off
          Power Management:off

Solution

Please detach the ethernet and reboot. Check to see if the wireless driver is loaded:

lsmod | grep rtl

If not, load it:

sudo modprobe rtl8192cu

Was a wireless interface created, ideally wlan0?

iwconfig

Does it scan and see your network?

sudo iwlist wlan0 scan

Is the wireless switch or key combination set to enable wireless?

rfkill list all

Comments

[Radu Rădeanu]

What is the output of lspci -nnk | grep -i net -A2 command?

[viktorhubinette]

00:19.0 ethernet controller [0200]:intel corporation 82579V Gigabit network connection [8086:1503] (rev 04) subsystem: acer incorporated [ALI Device] [1025:8000] Kernel driver in use : e100e

[viktorhubinette]

btw this is the output of iwconfig viktor@Viktor-Dator:~$ iwconfig usb0 no wireless extensions. eth0 no wireless extensions. lo no wireless extensions. wlan0 IEEE 802.11bgn ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm Retry long limit:7 RTS thr=2347 B Fragment thr:off Power Management:off

[viktorhubinette]

please help, bump

[viktorhubinette]

yes it's loaded after reboot and i can see my wireless but it taking a while to connect to it and when I connected I don't have internet access :/

[viktorhubinette]

But how can I get my Realtek wireless driver back like I had before ?