I was wondering if you can help, I have a few devices that are on a 2004 release build of windows 10 and I need this updating. I have set a feature update policy and set the update ring policy (Feature update deferral period) to 0 however this hasn't worked where am I going wrong?
For start, look at the deadline settings. Another thing I will recommend checking is whether the update ring policy is applying on the endpoints or not.
Ok, what I did have at another customer is that the Telemetry settings were too low. Because of that, the clients didn't report back with all details, and the feature upgrade didn't start. Not sure which versions were involved, it could be earlier than version 2004.