Hi there - I coudn't comment on an older similar discussion so have started one anew.
My Pegasus R6 has suddenly stopped mounting without warning - it wakes up when I put the Thunderbolt goes into the MacBook's port and makes all the usual wake-up sounds, but doesn't mount. It was working fine 2 days ago and dismounted correctly - all appeared usual. All the lights are on and blue, nothing seems amiss otherwise.
Can someone help?