Resolving the Problem Through Registry Entries When we run this, we get the correct connection and output: ', versionResponse.Version) Ĭonsole.WriteLine('An error has occurred: ' + ex.ToString())

RetrieveVersionResponse versionResponse = (RetrieveVersionResponse)service.Execute(versionRequest) Ĭonsole.WriteLine('Microsoft Dynamics CRM version. RetrieveVersionRequest versionRequest = new RetrieveVersionRequest() Service = (IOrganizationService)conn.OrganizationWebProx圜lient != null ? (IOrganizationService)conn.OrganizationWebProx圜lient : (IOrganizationService)conn.OrganizationServiceProxy Var connectionString = Office365 Url= Username=yourusername Password=yourpassword' ĬrmServiceClient conn = new CrmServiceClient(connectionString) We will do something simple, like connecting to Dynamics 365 and getting the version: You can read more about the Dynamics 365 update to TLS 1.2 on the Microsoft website here.

In this post we will simulate getting an error trying to use a TLS version lower than TLS 1.2, running against Dynamics 365 version 9.0 and the ways to fix it. NET code is running older versions of TLS, and the apps you are integrating with use newer protocols, you will run into errors. It is important to be on higher versions of TLS as older versions are subject to exploits. NET 4.5+ supports TLS1.2 through a code update shown below Integrity between two communicating applications. As the specification states: The primary goal of the TLS protocol is to provide privacy and data TLS, “Transport Layer Security” is a protocol that provides privacy between 2 applications. TLS has two layers, 1) TLS Record Protocol, which provides security, and 2) TLS Handshake Protocol, which allows the apps to authenticate.

Test tls 1.2 support in net framework