Did an upgrade to El Cap on a spare iMac machine. Everything upgraded smoothly but the Magic Trackpad constantly freezes for a couple of seconds, the trackpad disconnects itself then immediately re-connects itself. This doesn't happen with the wireless keyboard, just the trackpad.
1. Anyone seeing similar behavour?
2. Anyone any clues what might be going on and any workarounds.
I did try the basic: removing the trackpad and re-pairing it, but didn't solve the disconnect / re-connect pattern.