Just FYI and informational. We had another channel about VDA registration talk. I can confirm this works really good. If anyone was wondering. Only if the current DDC are up and the VDA can register with them. Other wise disable it and update listofDDC and delay the Desktop service. https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/2203-ltsr/manage-deployment/vda-registration.html#auto-update