While once again googling for a cure to my rpi wifi woes, I happened to land at this thread.
So what I take from here is that many of you are telling that both RA5370 based dobgles and Edimax ew-7811un (and those with the san chipset) work just fine with the current wheezy.
According to my experience this is not the case:
I tried first one RA5370 based dongle, got it running easily, but after few minutes the connection was lost. I also found out that tehe connection was patchy already before loosing it i.e. With a ssh connection to rpi, characters were missed from keyboard input etc. I broad this dongle back and ordered an Edimax ew-7811un dongle from amazon as I expected that to work just fine.
Now after receiving the new dongle I'm suffering from exactly the same issue: my rpi connects to my AP easily (using only 2m distance), but after a short while the connection is lost. Some times it even seems that the whole device hangs i.e. I cannot login even if I connect the ethernet cable.
I have tried to rule out any potential power supply issues by
- trying apple ipad 2.2A usb power => no cure
- testing both with and without an active hub between rpi and dongle => no cure. If any, it even seems that I may not at all get connected when using the active usb hub (d-link DUB-H4) (!)
I have also extensively tried to play with /etc/network/interfaces settings i.e. To connect with/without wpa_supplicant etc. As the rpi anyway initially connects with my AP, I doubt there should be anything fundamentally wrong with these settins, right?
Anybody having similar experiences? Any suggestions?