Mini won't wake from sleep

Since the OS 10.13.3 update, my Mini won't wake from sleep. I've reset the SMC, the NVRAM and also booted up in safe mode. No change. Mini will go to sleep, but as soon as any key is touched to wake it up, it shuts down and will not respond to the power button. After resetting the SMC, I get two start up chimes. Anyone seen this before?


Thanks in advance.

Mac mini, macOS High Sierra (10.13.3), 2.3 GHz Intel Core i7 16 GB 1600 MH
Has invited:

howapple - hello

Favor from:

Yea, that page is a little tricky. You want it to say 10.13.3 Combo Update at the top and then click Download.


Screen Shot 2018-01-27 at 8.15.27 PM.jpg

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