I have just installed Ubuntu 15.10 and wireless is not working

What is the output of:

sudo lshw -C network ; sudo rfkill list; lsb_release -a; uname -a

Thanks

If the system has an Ethernet port, use a wired connection and get fully updated.

The following procedure applies to all supported releases of Ubuntu that are NOT End of Life (EOL) in the following table:

https://wiki.ubuntu.com/Releases

Please first connect your network card to the wireless router using an ethernet cable (also known as a LAN cable) and apply all updates.

In order to gather essential troubleshooting information about your wireless card, please follow this procedure:

Step 1

In the Ubuntu Terminal console , make sure that unlimited scrolling is enabled:

click on Edit > Profiles > "Default" profile > Scrolling. Choose "Unlimited" as scrolling option. Click Close and Close again.

If you are using the Gnome interface, open the Terminal console via "Applications->Accessories->Terminal"

If you are using the Unity interface (default graphical user interface in Ubuntu), use the 'search' function on the dash. Or you can click on the 'More Apps' button, click on the 'See more results' by the installed section, and find it in that list of applications. A third way, available after you click on the 'More Apps' button, is to go to the search bar, and see that the far right end of it says 'All Applications'. You then click on that, and you'll see the full list. Then you can go to Accessories > Terminal after that.

So the methods in Unity are:

Press CTRL-ALT-T key combination.

Dash > Search for Terminal

Dash > More Apps > 'See More Results' > Terminal

Dash > More Apps > Accessories > Terminal

Step 2

Please copy-paste the following diagnostic command from the

https://help.ubuntu.com/community/WirelessTroubleshootingProcedure

website using a web browser (like Google Chromium or Mozilla Firefox) into the Linux Terminal. The command STARTS with the word sudo and ENDS with the word lsmod. So please copy-paste the ENTIRE diagnostic command below from the web browser into a Terminal, press <enter>, then enter password when sudo asks for password, then press enter again.

Tip: If you have a wheel mouse or 3 button mouse you do not need to type commands into the Terminal. Highlight the diagnostic command written on the page. Move your cursor anywhere in the Terminal and press the wheel or middle button. Automatic Copy and paste! No spelling mistakes! No Typos! No other errors!

sudo apt-get update; sudo apt-get install usbutils pciutils hwinfo grep rfkill; sudo lshw -C network; rfkill list; sudo iwlist scan | grep -Ei 'chan|ssid'; cat /etc/network/interfaces; cat /etc/lsb-release; lspci -nnk | grep -iA2 net; lsusb; nmcli nm status; sudo lshw -short; uname -a; sudo updatedb; dmesg | grep -E '02:00|80211|acx|at76|ath|b43|bcm|brcm|CX|eth|ipw|ireless|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|ound|p54|prism|rror|rtl|RTL|rt2|RT2|rt3|RT3|rt5|RT5|rt6|RT6|rt7|RT7|usb|witch|wl';sudo dmidecode|grep -E 'anufact|roduct|erial|elease'; iwconfig; grep -E '80211|acx|at76|ath|b43|bcm|brcm|CX|eth|ipw|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|p54|prism|rtl|rt2|rt3|rt6|rt7|wmi|witch|wl' /etc/modprobe.d/*; cat /var/lib/NetworkManager/NetworkManager.state; sudo hwinfo --netcard ; ps -aux|grep -E 'wpa|icd|etwork'; netstat -rn ; cat /etc/resolv.conf; ls -lia /boot; grep tmpfs /etc/fstab; ubuntu-support-status; sudo update-pciids; sudo update-usbids; sudo lsmod

Step 3

Please do NOT attempt to send any attachment(s). Please copy/paste the full terminal output at this location:

https://answers.launchpad.net/ubuntu/+source/gnome-nettool/+question/273056

The troubleshooters at Launchpad need to see the full Terminal output from running the above diagnostic command.

Step 4

Please also specify the name of the wireless access point (SSID name) that you are trying to connect to (not the model/make of your router).

The output of "sudo lshw -C network ; sudo rfkill list; lsb_release -a; uname -a" is

 *-network NO RECLAMADO
       descripción: Network controller
       producto: BCM4322 802.11a/b/g/n Wireless LAN Controller
       fabricante: Broadcom Corporation
       id físico: 0
       información del bus: pci@0000:08:00.0
       versión: 01
       anchura: 64 bits
       reloj: 33MHz
       capacidades: pm msi pciexpress bus_master cap_list
       configuración: latency=0
       recursos: memoria:d1100000-d1103fff
  *-network
       descripción: Ethernet interface
       producto: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       fabricante: Realtek Semiconductor Co., Ltd.
       id físico: 0
       información del bus: pci@0000:09:00.0
       nombre lógico: enp9s0
       versión: 02
       serie: 00:1e:68:7c:46:11
       tamaño: 1Gbit/s
       capacidad: 1Gbit/s
       anchura: 64 bits
       reloj: 33MHz
       capacidades: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuración: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full ip=192.168.0.11 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s
       recursos: irq:27 ioport:2000(size=256) memoria:d1010000-d1010fff memoria:d1000000-d100ffff memoria:d2500000-d250ffff
0: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no
1: hp-wifi: Wireless LAN
 Soft blocked: no
 Hard blocked: no
2: hp-bluetooth: Bluetooth
 Soft blocked: no
 Hard blocked: no
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 15.10
Release: 15.10
Codename: wily
Linux FisherUbuntu 4.2.0-16-generic #19-Ubuntu SMP Thu Oct 8 15:35:06 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Solved!
I just installed the broadcom wireless driver following:

http://askubuntu.com/questions/55868/installing-broadcom-wireless-drivers

Anyway, actionparsip and Mark, thank you very much!