I've had a similar problem. In my case the real problem was that system
was generating a memory dump for seeeeeveral minutes with the screen in
black so it was frozen apparently but it was generating the memory dump.
After analyzing the memorydump in...
Have you tried disabling all WAN miniports (XXXX) in device manager and
restarting? I've had a similar problem and with that operation all
miniports were resintalled and system sleep again.
I've had a similar problem with a new laptop... After searching in many
support sites for problems related with: windows 10 don't sleep after
anniversary update, problems waking up from sleep or hibernate mode,
windows 10 failed to sleep... Finally I...
