I too have had this well trodden problem but without any fix obvious to me, please bear with me.
But in short, it seems to me that the TL-WN725N is not using the correct driver despite me (seemingly) having followed all the correct procedures.
Any ideas?
My outputs are as follows:
This -> that:
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pi@raspberrymono ~ $ uname -a
Linux raspberrymono 3.18.7-v7+ #755 SMP PREEMPT Thu Feb 12 17:20:48 GMT 2015 armv7l GNU/Linux
Verify the Usb Device is "0bda:8179":
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pi@raspberrymono ~ $ lsusb
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 004: ID 0bda:8179 Realtek Semiconductor Corp.
Bus 001 Device 009: ID 046d:c52e Logitech, Inc.
Hence in Pi 2 Driver files, identify:
3.18.7-v7+ #755, #756 - 8188eu-v7-20150212.tar.gz
Accordingly, prepare to run the following three commands:
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wget https://dl.dropboxusercontent.com/u/80256631/8188eu-20150212.tar.gz
tar xzf 8188eu-20150212.tar.gz
./install.sh
The FIRST:
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pi@raspberrymono ~ $ wget https://dl.dropboxusercontent.com/u/80256631/8188eu-20150212.tar.gz
--2015-04-27 19:01:04-- https://dl.dropboxusercontent.com/u/80256631/8188eu-20150212.tar.gz
Resolving dl.dropboxusercontent.com (dl.dropboxusercontent.com)... 174.129.251.235, 54.225.166.10, 54.225.121.13, ...
Connecting to dl.dropboxusercontent.com (dl.dropboxusercontent.com)|174.129.251.235|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 320538 (313K) [application/octet-stream]
Saving to: `8188eu-20150212.tar.gz.1'
100%[======================================>] 320,538 886K/s in 0.4s
2015-04-27 19:01:10 (886 KB/s) - `8188eu-20150212.tar.gz.1' saved [320538/320538]
The SECOND:
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pi@raspberrymono ~ $ tar xzf 8188eu-20150212.tar.gz
The THIRD:
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pi@raspberrymono ~ $ ./install.sh
sudo cp 8188eu.conf /etc/modprobe.d/.
sudo install -p -m 644 8188eu.ko /lib/modules/3.18.7+/kernel/drivers/net/wireless
sudo depmod 3.18.7+
Reboot to run the driver.
If you have already configured your wifi it should start up and connect to your
wireless network.
If you have not configured your wifi you will need to do that to enable the wifi.
After REBOOTING wlan0 is missing:
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pi@raspberrymono ~ $ sudo ifconfig
eth0 Link encap:Ethernet HWaddr b8:27:eb:75:d1:cc
inet addr:192.168.1.89 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:32 errors:0 dropped:0 overruns:0 frame:0
TX packets:27 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3172 (3.0 KiB) TX bytes:3162 (3.0 KiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:8 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1104 (1.0 KiB) TX bytes:1104 (1.0 KiB)
Yet the file /etc/network/interfaces contains:
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auto lo
iface lo inet loopback
allow-hotplug eth0
iface eth0 inet dhcp
allow-hotplug wlan0
iface wlan0 inet manual
wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
iface default inet dhcp
And wpa_supplicant.conf contains:
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update_config=1
network={
ssid="PlusnetWirelessSOMECODE"
psk="SOMEPASSWORD"
}
All in all it seems to me that the TL-WN725N is not using the correct driver?
Any ideas?
