Retropie 3 – wifi TL-WN725N

This topic has 14 replies, 4 voices, and was last updated 9 years, 3 months ago by carlux3.

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07/20/2015 at 15:20 #102357
carlux3
Participant
Hello,

I installed a retropie 3 on a Rpi2, I’d like to connect it in wifi. I have wifi dongle TP-Link : TL-WN725N which should be working but it doesn’t.
When I go through the Retropie Wifi Menu it doesn’t detect any wifi network.
I try to follow some topics here but without success ….
I try to change the /etc/network/interfaces, but it didn’t change anything :
```
auto lo

iface lo inet loopback
iface eth0 inet dhcp
allow-hotplug wlan0
auto wlan0
#iface wlan0 inet manual
iface wlan0 inet dhcp
#wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
#iface default inet dhcp
wpa-ssid Numericable-f1f2
wpa-psk **********
```
it seems the wlan0 is not detected.

Do you have an idea ?
07/20/2015 at 16:05 #102360

herbfargus
Member

Did you try this:

No wireless networks found

Is your encryption WPA or WEP? Your interfaces file will be different depending on your encryption.

07/20/2015 at 17:35 #102365
carlux3
Participant
Hello,

Yes I did but it doesn’t help.

My encryption was : WPA-PSK [TKIP] + WPA2-PSK [AES] and changed it to WPA2-PSK [AES] and then to WPA-PSK [TKIP] but nothing changed

if I do a ifconfig, the wlan0 doesn’t appear.

Do I need to put the SSID and pasword between “” ?

if I do ifup wlan0 :
```
pi@retropie ~ $ sudo ifup wlan0
wpa_supplicant: wpa-roam can only be used with the "manual" inet METHOD
run-parts: /etc/network/if-pre-up.d/wpasupplicant exited with return code 1
Internet Systems Consortium DHCP Client 4.2.2
Copyright 2004-2011 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Cannot find device "wlan0"
Bind socket to interface: No such device
Failed to bring up wlan0.
```
07/20/2015 at 18:01 #102370

herbfargus
Member

Typically mine has double quotes like the example listed under option 2 here:

https://github.com/RetroPie/RetroPie-Setup/wiki/Setting-Up-Wifi

See if adding double quotes changes anything.

07/20/2015 at 18:03 #102371

herbfargus
Member

If its not even showing try sudo ifconfig wlan0 up

07/20/2015 at 18:18 #102373
carlux3
Participant
Typically mine has double quotes like the example listed under option 2 here:
https://github.com/RetroPie/RetroPie-Setup/wiki/Setting-Up-Wifi
See if adding double quotes changes anything.

it doesn’t change anything

If its not even showing try sudo ifconfig wlan0 up

see result below :
```
pi@retropie ~ $ sudo ifconfig wlan0 up
wlan0: ERROR while getting interface flags: No such device
```
07/20/2015 at 18:42 #102376

herbfargus
Member

sounds like its a driver issue then rather than your configurations. seems you’re not the only one who has had issues with the same wifi dongle:

https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=62371&start=475

07/20/2015 at 18:45 #102377

herbfargus
Member

from that forum link I posted you could try this:
sudo wget https://github.com/lwfinger/rtl8188eu/raw/c83976d1dfb4793893158461430261562b3a5bf0/rtl8188eufw.bin -O /lib/firmware/rtlwifi/rtl8188eufw.bin

sudo reboot

and then use wpa supplicant along with interfaces detailed here:
http://www.fars-robotics.net/

07/20/2015 at 19:28 #102384

petrockblog
Keymaster

I would just buy a new wireless dongle, one that has a well supported chipset. No point fighting each time with drivers when you can pick them up for a few pounds.

07/20/2015 at 20:07 #102386

muffy
Participant

On my old RP1 i had a TL-WN725N too.
You have to install the driver manually and every time again after a stystem update.

07/20/2015 at 21:24 #102391

carlux3
Participant

Thanks, but still nothing :'(

07/20/2015 at 21:25 #102392

carlux3
Participant

On my old RP1 i had a TL-WN725N too.
You have to install the driver manually and every time again after a stystem update.

can you tell which driver you use and how you install it ?

cheers

07/21/2015 at 19:47 #102459

muffy
Participant

Press F4 and read your actual Linux version.
For example Linux 3.12.22+.
Then you have to google for the driver. Every new Linux version needs an own driver for the TL-WN725N.

For the installing i used this tutorial:

07/21/2015 at 19:48 #102460

muffy
Participant

How to install TP-Link TL-WN725N on Raspberry Pi

08/03/2015 at 15:56 #103293

carlux3
Participant

Unfortunatly nothing works … I’ll see to buy a new dongle…

Thanks
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