VB. NET: The request was aborted: Could not create SSL/TLS secure channel

Question

I have an application coded in VB.net that has this method of accessing Webservice, i have this error and after searching fixes i still have no luck.

Error: The requ

Answer 1

Obviously the URL you're calling requires TLS 1.1 or TLS 1.2.

You can enable TLS 1.1 or TLS 1.2 by setting the security-protocol with ServicePointManager.SecurityProtocol:

ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12

.NET 4.0 supports up to TLS 1.0 while .NET 4.5 or higher supports up to TLS 1.2
For reference:

• Default SecurityProtocol in .NET 4.5
• Are there .NET implementation of TLS 1.2?