I was amazed when I got an 11th-generation Intel NUC and it didn't sleep/wake properly.
I would have expected it with a cheap clone, but this was a fully integrated computer made by the same people who designed and manufactured the processor itself!
I can't remember if it ever fixed it - maybe after a year or two there were finally newer EFI and graphics drivers that fixed the issue, but maybe it never did? In the end I ended up getting a newer machine to replace it anyway and it became my home server so just runs Proxmox now and doesn't need to ever sleep...
I know the NUC I had had it's ethernet port put PERMANENTLY to sleep.
There was, eventually, a Windows program which hacked the device to take it out of sleep. But I had no Windows OS on it. Before I got around to installing enough Windows, the NUC died for other reasons :-(
I would have expected it with a cheap clone, but this was a fully integrated computer made by the same people who designed and manufactured the processor itself!
I can't remember if it ever fixed it - maybe after a year or two there were finally newer EFI and graphics drivers that fixed the issue, but maybe it never did? In the end I ended up getting a newer machine to replace it anyway and it became my home server so just runs Proxmox now and doesn't need to ever sleep...