wifi connection bt hub

How are you connecting to your bt hub? (Internal wireless card, usb wireless card. Any details we might need to solve the problem are most likely contained in the output of the command
sudo lshw -C net
Just open a terminal (Accessoires/Terminal) and type in this command). And what exactly does it do after asking the passkey?

Normally if Ubuntu does find any wireless device and ask for your passkey everything works like magic... ...the only exception I ever encountered was a laptop with a software switch that could be used to turn off the wifi's sender... ...and that was attached to the computer's keyboard controller instead of the Wifi. But that was many years ago...
...perhaps it might help to know what computer you are using, as well. Just to make sure that this isn't the case again.

Hi thanks for the help,

I am using a HP Touchsmart.
after asking for the passkey the icon looks like it tries to conect but
from the pocink around i have done on the edit connection bit it looks
like it cnat get an ip address forn the dhcp. thingy.
it is an internal wifi card.
below is the result from the terminal query.
*-network
       description: Wireless interface
       product: RT2860
       vendor: RaLink
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: wlan0
       version: 00
       serial: 00:22:5f:55:9a:dd
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet
physical wireless
       configuration: broadcast=yes driver=rt2800pci
driverversion=2.6.35-25-generic firmware=N/A latency=0 link=no
multicast=yes wireless=IEEE 802.11bgn
       resources: irq:16 memory:f9ff0000-f9ffffff
  *-network
       description: Ethernet interface
       product: RTL8111/8168B PCI Express Gigabit Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eth0
       version: 02
       serial: 00:23:54:f0:29:eb
       size: 100MB/s
       capacity: 1GB/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list rom
ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd
autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169
driverversion=2.3LK-NAPI duplex=full ip=192.168.1.73 latency=0 link=yes
multicast=yes port=MII speed=100MB/s
       resources: irq:44 ioport:c800(size=256) memory:f9dff000-f9dfffff
memory:cfff0000-cfffffff memory:f9dc0000-f9ddffff
nightingales@ubuntu:~$

Seems like there are many variants out there. If you type in
hp touchsmart ubuntu
into google you'll find that most of these devices may need minimal tweaking of the standard ubuntu install but then all seem to work flawlessly.

Which model of the touchsmart do you have?

it is the hp touchsmart IQ520uk

it is the hp touchsmart IQ520uk

What you can try is
- install ndisgtk
- try the instructions you can find here: https://help.ubuntu.com/community/WifiDocs/Driver/Ndiswrapper

Anyway... ...if your wifi is detected by ubuntu the problem might be on the router's side (the last time I had networking problems my computer was trying to talk to a router that was able to remember only 16 computers it could talk to. And in the two years before it already had talked to 16 computers... ...or you could tell your router to send on a different channel. Maybe it sends on a channel your ubuntu is not sure about if it's OK to use that channel in your country.

Hi,

Please first connect your wired network adapter to the wireless router using an ethernet cable (also known as a LAN cable).

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

Step 1: Open Terminal from "Applications->Accessories->Terminal"

Step 2: Please copy-paste the following command from the https://answers.launchpad.net/ubuntu website in Firefox into the Linux Terminal. Do NOT copy-paste from the Email message into the Terminal, as that will only copy PART of the command. The command STARTS with the word sudo and ENDS with the word lsmod. So please copy-paste the ENTIRE command below from Firefox 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 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 hwinfo grep; sudo lshw -C network; rfkill list; sudo iwlist scanning; cat /etc/network/interfaces; cat /etc/lsb-release; lspci -nn; lsusb; sudo lshw -short; uname -a; dmesg | egrep 'acx|at76|ath|b43|bcm|CX|eth|ipw|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|ound|p54|prism|rtl|rt2|rt3|rt6|rt7|usb|witch|wl'; iwconfig; cat /etc/modprobe.d/* | egrep 'acx|at76|ath|b43|bcm|CX|eth|ipw|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|p54|prism|rtl|rt2|rt3|rt6|rt7|witch|wl'; sudo hwinfo --netcard ; cat /var/lib/NetworkManager/NetworkManager.state; sudo lsmod

Step 3: Please post results (copy/paste terminal output) on this thread. The troubleshooters here need to see the full Terminal output from running the above command.

Regards,

Mark