i brought this issue up to alpha's digital sound expert, and he related a similar problem with his presonus/laptop/ipad setup at a gig; he was thrown for a loop until he discovered that two band members had broken out new line 6 relay digital wireless units that night!...the wi-fi kept failing! i would see solid bars of the wi-fi icon on our various igadgets, but they would be unable to sync up to the mixer; the "devices" page would show "no available devices" even though the router was up and running.
turning things off then back on would sporadically fix the problem, but this issue was annoying all night. i don't know that it's not a problem with our router or the cat 5 cable, though.
he bumped his router from 2.4GHz where the line 6 relay lives up to 5GHz, and was fine after that.
i use a G50 myself, and that could very well have been causing a conflict! (unfortunately the router we got is only 2.4GHz, as the idea is to use individual iphones to tweak monitors, and we all have the 4S instead of the 5.)
next time i'll try different channels on my G50, and i'll see if just having my transmitter off helps with the device connectivity.
