We are informing our partners that Microsoft will be enforcing "secure RPC with the Netlogon secure channel" for domain-joined devices. This enforcement will be in effect during our standard Microsoft patch schedule in February 2021.
There are a number of WinXP, Win7, legacy Win10 releases and legacy Windows Server systems that are domain joined. We strongly advise our partners to replace and/or upgrade those domain joined legacy systems before February 9, 2021.
We thank you for your continued support and cooperation.