Rasplex Wifi

Anyone getting issues with Rasplex detecting 5GHz networks? My Rasplex seems to find the 2.4 GHz network easily but doesn't show the 5GHz network for me to select. I am wondering if this s an issue with my USB Wifi dongle or a known issue across the board with rasplex? Anyone got  5GHz wifi working?

If you use the same dongle in a PC does it detect it? Some chipsets only work on the lower frequency (e.g. this is true of some older iPhone wifi chipsets).

Does your dongle support 5Ghz?