Describe the bug

On sites that run .Net 4.0, if reCaptcha is enabled, the following errors shows:
Could not create SSL/TLS secure channel

Software Versions

• DNN: 08.00.xx
• Module: 06.06.00
• .Net 4.0

To Reproduce

Steps to reproduce the behavior:

1. On a site that has Dnn 8 running .Net 4.0
2. Install Feedback 06.06.00
3. Enable recaptcha
4. Try to submit feedback and notice the error

Expected behavior

Should work

Error log

AbsoluteURL:/Default.aspx
DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke
ExceptionGUID:34a02092-32a8-40a2-b2fa-83eac02f583f
AssemblyVersion:8.0.4
PortalId:1
UserId:-1
TabId:129
RawUrl:/temoignages
Referrer: ........... /temoignages
UserAgent:Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.67 Safari/537.36
ExceptionHash:t4HDFo6Ou9uQE6VDMCiSkw==
Message:The request was aborted: Could not create SSL/TLS secure channel.
StackTrace:
InnerMessage:The request was aborted: Could not create SSL/TLS secure channel.
InnerStackTrace:
at System.Net.WebClient.DownloadDataInternal(Uri address, WebRequest& request)
at System.Net.WebClient.DownloadString(Uri address)
at System.Net.WebClient.DownloadString(String address)
at DotNetNuke.Modules.Feedback.NoCaptcha.Validate() in D:\websites\dnn911\DesktopModules\DNN.Feedback\Components\NoCaptcha.vb:line 77
at DotNetNuke.Modules.Feedback.Feedback.cmdSend_Click(Object sender, EventArgs e) in D:\websites\dnn911\DesktopModules\DNN.Feedback\Feedback.ascx.vb:line 449
at System.Web.UI.WebControls.LinkButton.OnClick(EventArgs e)
at System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument)
at System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
Source:
FileName:
FileLineNumber:0
FileColumnNumber:0
Method:
Nom du serveur: WIN1-DC1
Paste the error log that is related to this issue.

Additional notes

I think google now forces TLS 1.2 only, .Net 4.5 has a way to force TLS 1.2 and .Net 4.0 also has a workaround, I will try to implement that to see if it fixes the issue.