I just purchased a brocade ICX6610-48p and set it up following Fohdeesha's directions. Whenever I connect a grandstream device (GXV3370 phone) or my GWN7610 access point it powers on for about 30 seconds then shuts off. "show inline power" says it's a "PD detection fault" Everything works fine on my Dell 6248P. I'm only using 18 watts out of 748. Thanks.