TP-Link TLWN725N V2 low signal

Question

I'm using Lubuntu 15.04 - 64 bit, kernel 3.19.0-18-generic.

My TPlink, is always with low signal(normally 2%). The other computers are working just fine with other wireless pens, with good quality signal.

1 - first part (http://linuxforums.org.uk/index.php?topic=11261.0):

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

sudo apt-get install build-essential linux-headers-generic git
mkdir ~/RTL8188EU
cd ~/RTL8188EU
git clone git://github.com/lwfinger/rtl8188eu
cd ~/RTL8188EU/rtl8188eu
make
sudo make install
sudo cp -v ~/RTL8188EU/rtl8188eu/rtl8188eufw.bin /lib/firmware/rtlwifi/
sudo depmod -a
sudo update-initramfs -u
sudo modprobe 8188eu

then, second part to make sure the correct driver is loaded (Low wireless signal with TP-Link TL-WN725N WiFi dongle):

added this line: blacklist r8188eu

In

sudo gedit /etc/modprobe.d/blacklist.conf

Save and Quit from Text Editor

Then in

sudo gedit /etc/modules

I added this line at the end of the configuration: 8188eu. Save and Quit from Text Editor again

Then you do

sudo depmod -a
sudo update-initramfs -u

And before you reboot the system it is important to test these commands:

Check if the module you already blacklisted with

lsmod | grep r8188eu

If it's not removed then remove it with

sudo rmmod r8188eu

And finally you do

sudo rmmod 8188eu
sudo modprobe 8188eu

To refresh the module and you'll have a working with full signal wireless

Reboot!

now, I have a 100% signal connection with ip address, but unable to connect to internet.

The output of iwconfig&ifconfig:

wlan0     unassociated  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency=2.462 GHz  Access Point: Not-Associated   
          Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

wlan0     Link encap:Ethernet  HWaddr 30:b5:c2:19:a3:13  
          inet addr:192.168.180.192  Bcast:192.168.180.255  Mask:255.255.255.0
          inet6 addr: fe80::32b5:c2ff:fe19:a313/64 Scope:Link
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:9 errors:0 dropped:0 overruns:0 frame:0
          TX packets:35 errors:0 dropped:3 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:2890 (2.8 KB)  TX bytes:3714 (3.7 KB)

what's missing?

@Pilot6 route -n output:

Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.180.1 0.0.0.0 UG 1024 0 0 wlan0
192.168.180.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0