RaspyFi - Topic: For people using Edimax Wifi stick

andrewtott on For people using Edimax Wifi stick

Fri, 13 Dec 2013 15:39:30 +0100

Hi I tried this on my Edimax EW-7811Un Wifi stick and the stick refused to come on. Only when I deleted the 8192cu.conf file did the wifi work. Any ideas how I can stop the timeout? Thanks

Gio-T on For people using Edimax Wifi stick

Sun, 08 Dec 2013 08:39:20 +0100

http://developer-blog.net/hard.....ew-7811un/

The solution to the issue consists of two parts.
First we adjust the responsible 8192cu driver options by creating a new configuration file:

sudo nano /etc/modprobe.d/8192cu.conf

the file should contain the following line:

options 8192cu rtw_power_mgnt=0 rtw_enusbss=0

This should disable the sleep-mode of the Edimax EW-7811Un Wi-Fi stick.
To make this really sure, we can also create a cronjob pinging the router in regular intervals.
For this we open crontab:

sudo nano /etc/crontab

and add the line:

*/1 * * * * ping -c 1 192.168.1.1

adjusting "192.168.1.1" with the IP of your router.

Chboss on For people using Edimax Wifi stick

Sat, 07 Dec 2013 12:59:41 +0100

I had some issues after switching from wired ethernet to Wifi using and Edimax Wifi Stick.
After longer periods of inactivity the Raspyfi system could no longer be reached, nor was the systems IP address reachable in the network.
Looking at the Wifi stick I could see the blue activity LED was off.
Seems that the driver switches Wifi off if not used for some time...

After some googling I found the following solution (sorry in German:
http://developer-blog.net/hard.....ew-7811un/

I hope this is of help for those of you who use an Edimax stick.

best regards
Chris