Question

Im Not sure what this is telling me?
I have this in place:

<system.web>
    <customErrors mode="Off"/>

When I click on a button that it is supposed to upload a file. I get the error Listed above when doing so. I am running on my local machine. I try to debug it and I get the error and not my break point. I put the “hello” line in thinking it was trying to evaluate the “if” statement before doing my breakpoint. Still fails and not sure why.

 protected void btnUpload_Click(object sender, EventArgs e)
 {
     string a = "hello";
     if (FuQuote.HasFile)
     {
         string path = "~/Quotes/" + FuQuote.FileName;
         FuQuote.SaveAs(MapPath(path));
     }
 } 

This problem can be caused by a variety of issues, including:

• Internet connectivity has been lost.
• The website is temporarily unavailable.
• The Domain Name Server (DNS) is not reachable.
• The Domain Name Server (DNS) does not have a listing for the website’s domain.
• There might be a typing error in the address.
• If this is an HTTPS (secure) address, click Tools, click Internet Options, click
  Advanced, and check to be sure the SSL and TLS protocols are enabled
  under the security section.

Answer 1

What is your maxRequestLength value set to in your web.config? You are probably selecting a file that is bigger than the maxRequestLength value.

<system.web>
    <httpRuntime maxRequestLength="4096"/>
</system.web>