http://www.raspberrypi.org/phpBB3/viewt ... start=1125
You're right about those symptoms being power management related. The 8192cu kernel module has power management enabled by default:
- Code: Select all | TOGGLE FULL SIZE
pi@raspberrypi ~ $ cat /sys/module/8192cu/parameters/rtw_power_mgnt
I was able to disable power management completely by creating /etc/modprobe.d/8192cu.conf with the following contents:
After creating the file, you will need to reboot. You can confirm that power management is disabled after rebooting by verifying that the value of the rtw_power_mgnt parameter is now 0.
After I followed these steps, I haven't had any dropouts. I just thought I'd share this in case anyone else has the same issue.