Thank you very much! :-)
Dynamics 365 Business Central On-Premise 17.x
Short Term Solution:
It will let the existing integration work until April 2022. Drop SDK 9.0.2.11 on the NST and update binding redirect in the server config file. Follow this link (99+) How to deploy manually the newer version of CRM SDK on premise to skip Regional Discovery Service (RDS) validation error - Dynamics 365 Business Central Forum Community Forum
Mid Term Solution:
Dynamics 365 Business Central product group is about to implement the new XRM SDK also with on-premises 17.x and it will be included in July 2021 upcoming CU.
This hotfix is related to use latest XRM SDK that allow for skipping URL verification and fall back using global discoverability service. This is a mid-term solution valid until April 2022 where legacy Office365 authentication method will be deprecated by Dynamics 365 team.
Long term solution:
Move to OAuth authentication (same as for Dynamics 365 Business Central SaaS).
