A connection was successfully established with the server, but then an error occurred during the pre-login handshake.

Question

I am getting following error when i am trying to connect Production DB from Local Environment.

I was able to connect Production DB before, but suddenly i am getting following error, any idea?

A connection was successfully established with the server, but then an error occurred during the pre-login handshake. (provider: TCP Provider, error: 0 - The handle is invalid.)

I was trying to run asp.net website in local PC, which has connection string of Production DB, following is stack trace for error i am getting in local environment.

at MyWebsiteDAL.clsForumQuestion.SelectAll(Int32 CurrentPageIndex, Int32 PageSize) in D:\EDrive\My WebSites\MyWebsite\MyWebsite\MyWebsiteDAL\clsForumQuestion.cs:line 821
   at CodeConnect.Default.Page_Load(Object sender, EventArgs e) in D:\EDrive\My WebSites\MyWebsite\MyWebsite\MyWebsite\Default.aspx.cs:line 100
   at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e)
   at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e)
   at System.Web.UI.Control.OnLoad(EventArgs e)
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Any idea what might have gone wrong here?

Answer 1

Solution

1) Clean your VS.Net Solution

2) Rebuild Project.

3) Reset IIS

4) Run the project again.

Basically that solved my problem, but in my case i was not getting this error and suddenly my local environment starts giving me above error, so may be that trick work for me.