So I have finally built my first D3D UWP application and wanted to test it on my Xbox. For that, I instructions on Xbox Developer Mode activation - UWP applications | Microsoft Learn, downloaded the dev app, went to https://partner.microsoft.com/en-us/xboxconfig/devices/index and found out that the page immediately showed a red notification bar "Request failed with status code 400". If I try to add the device via the plus button on the right, it also shows "Request failed with status code 400". I have a valid partner program account and an xbox one. I have no idea why this isn't working. Does anyone know how to help?
#Unable to put xbox in developer mode.
foggy mesa