TL-WN725N nano recognised but not connecting

hi anyone, my new netbook has bugs so went out and got a nano TL - WN725N wifi thingy and it is being recognised but not connecting to the router??? can anyone help? i installed the latest in windows ubuntu… thanks

Can you open a terminal (Ctrl+Alt+T) and send the output from these commands:

lsusb

and

sudo lshw -C network

and

iwconfig

and

iwlist scanning

and

rfkill list

If it will make it easier … connect to your router with an ethernet cable whilst doing this.

Hi, thanks for your reply, since posting the nano has been recognized, but then crashes and not connecting again. did as you instructed and got this back

paul@ubuntu:~$ lsusb
Bus 001 Device 011: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
paul@ubuntu:~$ sudo lshw -C network
[sudo] password for paul:
*-network
description: Network controller
product: RTL8188CE 802.11b/g/n WiFi Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=rtl8192ce latency=0
resources: irq:16 ioport:e000(size=256) memory:dfe00000-dfe03fff
*-network
description: Ethernet interface
product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: eth0
version: 05
serial: 8c:89:a5:05:eb:51
size: 100Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8105e-1.fw ip=192.168.1.31 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:42 ioport:d000(size=256) memory:dfd04000-dfd04fff memory:dfd00000-dfd03fff
*-network
description: Wireless interface
physical id: 1
bus info: usb@1:2
logical name: wlan0
serial: a0:f3:c1:1a:18:b1
capabilities: ethernet physical wireless
configuration: broadcast=yes driver=rtl8192cu driverversion=3.5.0-27-generic firmware=N/A link=no multicast=yes wireless=IEEE 802.11bgn
paul@ubuntu:~$ iwconfig
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

paul@ubuntu:~$ iwlist scanning
eth0 Interface doesn’t support scanning.

lo Interface doesn’t support scanning.

wlan0 No scan results

paul@ubuntu:~$ rfkill list
8: phy9: Wireless LAN
Soft blocked: no
Hard blocked: no
paul@ubuntu:~$

Just getting the correct driver now … but whilst you wait, install linux-headers-generic and build-essential by running this command:

sudo apt-get install linux-headers-generic build-essential

You MUST have an active internet connection for the above command to work.

thanks again, have put that command in but got this back

paul@ubuntu:~$ sudo apt-get install linux-headers-generic build-essential
E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?

Make sure ALL package managers are closed … then run it again

Package managers include

Update Manager
Software Centre
Synaptic (if installed)

Or you could just reboot, and not open any of the above whilst running the command :wink:

OK, be SURE to run the command in my last but one response whilst connected to your router with an ethernet cable BEFORE running these commands.

Here it is again, just in case (won’t hurt if you run it again … it will just tell you they are already installed):

sudo apt-get install linux-headers-generic build-essential

You’ll still need an active internet connection for the “wget” command below … so propbably best to stay connected to the router until you’ve finished running the commands below.

I must add, I haven’t tested this build against a 3.5 kernel, but they compile against the 3.2 kernel … and they’re either going to compile or not, so can’t do any harm :wink:

Open a terminal (Ctrl+Alt+T) and run these commands in sequence.

mkdir ~/TL-WN725N_driver

then

cd ~/TL-WN725N_driver

then

wget https://dl.dropboxusercontent.com/u/11876059/rtl8188C_8192C_usb_linux_v3.4.4_4749.20121105.tar.gz

then

tar -xvf rtl8188C_8192C_usb_linux_v3.4.4_4749.20121105.tar.gz

then

cd ~/TL-WN725N_driver/rtl8188C_8192C_usb_linux_v3.4.4_4749.20121105

then

make

then

sudo make install

then

sudo modprobe -r rtl8192cu

then

sudo modprobe 8192cu

Did wireless spring to life ?

If so … check it survives a reboot.

did as you commanded and all went well except for the last line which came up not found. connecting the tk-link and it connected. did a reboot and am using it now. would love if i could buy you a drink or somit (i’m irish) for going out of your way for me, your THE JOB… thanks a mill

Your “thanks” is enough for me, glad to be of service … and you’re welcome :slight_smile:

mark, sorry to say that it is still going into search mode and not connecting, maybe i do have to do the last bit that failed???

Can you post the output from:

modinfo 8192cu

and

lsmod | grep 8192