Therefore, we introduced an improvement in the latter, starting with Telerik Reporting R3 2018 (12.2.18.912). The workaround cannot be applied to the Standalone designer.
there is also a registry hack which forces 4.5 to use TLS 1.2 by default without enforcing it programmatically." NET 4.0 doesn't have an entry for TLS1.2, so we'd have to use a numerical representation of this enum value: ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072
The only problem is that SecurityProtocolType in. NET 4.5 (or above) installed on the system then you still can opt in for TLS 1.2 even if your application framework doesn't support it. TLS 1.2 is not supported, but if you have. NET Support: How to Avoid Connection Errors blog post : Workarounds are suggested also in the TLS 1.2 and. NET Framework 4.6 Microsoft article, where a workaround is provided. To overcome the problem check the Cannot connect to a server by using the ServicePointManager or SslStream APIs after upgrade to the. Unable to read data from the transport connection: An existing connection was forcibly closed by the remoteĪn existing connection was forcibly closed by the remote host Suggested Workarounds The underlying connection was closed: An unexpected error occurred on a send. The client and server cannot communicate, because they do not possess a common algorithm Error MessageĪn error occurred while sending the request. The reports may throw the following error When using a WebServiceDataSource with such Web sources there may appear a problem with retrieving the data. The latter does not support TLS 1.2 by default. NET 4.0 mainly for backwards compatibility. The requirements of TLS 1.2 are recent, and it is not supported by older versions of the. For some Web sources this is the lowest acceptable secure version and all older protocols are disabled. TLS 1.2 is a relatively new protocol that provides enhanced security. What do these constants mean? Constant 768 means TLS 1.1 security protocol, and constant value 3072 means TLS 1.2 respectively.Download free 30-day trial WebServiceDataSource failing to retrieve web resources on TLS 1.2 HTTPS connection Environment Product Second, add the following code to your Program.Main() function: NET framework from the Microsoft website. Download and install the official software package of.
NET framework version installed on the computer. First of all, please make sure you have the latest. The request was aborted: Could not create SSL/TLS secure channel. When you get the following error, this may be also because of the outdated TLS version. Why may you need a newer TLS version? Because some REST or WebService API providers have switched to using TLS v1.2 as a more secure and up-to-date protocol.
NET 4.0 only supports TLS v1.0 and there is no standard way of forcing to use never TLS version. Sometimes you need to use SSL/TLS protocol version 1.2 in your existing.
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