The laptop crashes almost each time I open the lid to wake it up
As mentioned, almost each time I wake up my laptop by opening the lid, it crashes.
Sometimes short after, sometimes after a good 20 minutes.
Also, after closing the lid (so that my laptop can sleep), the sleep indicator light goes off completely after pulsating only for a short while, unlike before when it glowed continuously until I opened the lid again.
(This happens with and without AC adapter connected).
What I tried:
-reset SMC and NVRAM
-ran AHT twice and another third party tester
-reinstalled clean El Capitan and Sierra 3 or 4 times
-opened enclosure and checked if cables were properly connected
any ideas?
I'm currently running El Capitan 10.11.6 (15G1510) with everything up to date.
Is this a good question?