I mentioned this in the z9d thread, but I wanted to see if others with x930e, x940e, all 2017 models, and even the later x1 extreme tvs(x900f) are also having the same problem with Oreo(6.6520) on their sets. I've had multiple power issues, and I can't find any solutions. Here's what I posted in z9d thread:
"Okay, there seems to be many issues with my z9d post-oreo(v6.6520). Every day my tv reboots when I try to power it on, the set randomly turns on and reboots even when its off, and I still get wifi off errors. Can anyone help here? I am beginning to lose it. Should I reinstall the OS? Call Sony? My set was fine before Oreo. I never had any problems like this."