Hi guys, I’m having a really tough time with the wifi connectivity. Running Raspbian Jesse with the very common Edimax wifi dongle, 8192cu driver. I was having this problem and after 4 nights, I totally rebuilt the SD card, installed OS from scratch, configued wpa_supplicant.conf and got connected. I was on! I ran raspi-config, rebooted, and now “no wireless interfaces found” again. lsusb shows the usb sees it, lsmod shows the driver is loaded. I bought a powered USB hub today, tried that, rebooted several times, and it just won’t use the wifi card. I tried reinstalling the drivers- something like "apt-get install firmware-realtek” but it was already up to date. I’m running "sudo ifup wlan0” over and over, like suggested, and nothing. Any suggestions would be welcomed!