Tuesday, March 13, 2018

Error Connecting to Dynamics 365 Online from Report Viewer in VS

After entering connection details the connection dialog prompts for the credentials multiple times and this is because of the recent changes by Microsoft to he overall platform

Its all because of the latest update in the Microsoft TSL(Transport Security Layer) Protocol in SDK assemblies..Microsoft allowed the TSL connection 1.0  and 1.1 for the browsers or client to connect the CRM org.Now Microsoft will support only TSL 1.2 or above going forward(Reference) . If you are connecting your org with the old version of plugin registration tool , then you may face this issue.

Uninstall Report Authoring Extension and install the latest.(Make sure Installed dll is the latest SDK 9.0). if this doesnt resolve the issue then follow the below step.

On the machine where VS is installed go to the start menu, then type run and then enter. Type in regedit and then OK.

Once the Registry Editor is open, go to: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319
Right click on the name of the folder (the v4.0.30319 folder) and select New, then DWORD. Give it the name of SchUseStrongCrypto and the Value of 1. Exit the Registry Editor, then restart your machine.