I’ve been very frustrated with Arc connections recently but just find out one possible solution, and I hope this thread might save some of you guys time trying to delete, reinstall or sudo stuffs.
My new Arc4 worked before with a native el capitan Mac, but it just stopped showing up recently. I did everything i could find in the forum and it just still can’t be connected. Then i connect it to a usb hub with external power, and it suddenly works…
im on a MacBook Pro (Retina, 15-inch, Mid 2015), with recently updated el capitan, version is 10.11.6
but one thing still bothered me is, my Grid128(newest version) works just fine without the usb hub, and it seems it should consume more power than Arc(right?)
anyway i hope this could be helpful!!