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Editorial Team
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Asked: 2026-06-01T04:55:18+00:00

I have an ASP.NET 4 WebForms website running off IIS 7, we have three

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I have an ASP.NET 4 WebForms website running off IIS 7, we have three versions: local development versions, test versions and production.

All three use SSL certificates. We have three different certificates for each environment.

If I wanted to load up my VM with IE7 installed, and go to my local development version, for the first visit I always get this message. Selecting OK or Cancel proceeds to the page without any issue.

IE7 Digital Certificate blank empty list

I’ve already tried the solution offered here, but it did not work:
IE: Choose a digital certificate from a blank, empty list

IE8 works fine.

Does anybody have any clues as to why I get this box?

The certificate for our local development version is installed into IIS and is installed into the Virtual machine also.

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1 Answer

  1. Editorial Team

    (As far as I understand, you’re asking why you get this box at all, not why the list is empty.)

    You’ll get this box when the server requests a client certificate. You probably have configured your server (or one of the application it’s running) to request client-certificate authentication (perhaps optionally). If turning it off as an IIS option doesn’t work, perhaps the code you’re running is making that request. In addition, you could check with netsh http show sslcert whether Negotiate Client Certificate is enabled.

    If you’re not planning to use this feature, that is, if you’re not expecting your users to authenticate using a certificate, turn this off.

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