IISExpress cannot find ssl page running localhost with Visual Studio 2013

Question

When I access the site as http://localhost:26049, the site runs fine. If I try to access the site with https://localhost:44319, I get page not found.

This is my proj

Answer 1

None of these options worked for me in VS2017 with the same problem. This solution using iisexpresscmdadmin with a self-signed cert got my site to finally pull up:

How do I fix a missing IIS Express SSL Certificate?

Answer 2

It looks like IIS Express is not starting the project under the https URL. Try changing the default project URL to the SSL one in

"Web Project->Properties->Web->Project URL" to the URL with https.

Answer 3

In my case on a previous run the IIS Express added a certificate (called localhost) to the Personal > Certificates folder. But I was getting an invalid certificate error in the application. So I moved the localhost certificate to the Trusted Root...> Certificates and everything started to work.

The next day when I run the same application I started to get this ERR_CONNECTION_RESET error. All I had to do is to move the localhost certificate out of the Trusted Root...> Certificates folder and back to the Personal > Certificates folder.

In case the "localhost" certificate is missing in either of the folders then you have to repair/reinstall IIS Express from Control Panel > Add/Remove Programs. This will reinstate the localhost certificate.

Visual Studio 2015, IIS Express, Windows 8, Asp.net MVC

Answer 4

I had the same problem. My HTTP site was running fine, but IIS Express just wouldn't start my SSL site. While it did the day before.

My problem was that I had somehow messed up the aplicationhost.config file. My project was registered twice:

<site name="Test.Api" id="5">
    <application path="/" applicationPool="Clr4IntegratedAppPool">
        <virtualDirectory path="/" physicalPath="C:\Users\bartd\Source\Repos\Test\Test.Api" />
    </application>
    <bindings>
        <binding protocol="http" bindingInformation="*:27108:localhost" />
    </bindings>
</site>
<site name="Test.Api(1)" id="6">
    <application path="/" applicationPool="Clr4IntegratedAppPool">
        <virtualDirectory path="/" physicalPath="C:\Users\bartd\Source\Repos\Test\Test.Api" />
    </application>
    <bindings>
        <binding protocol="http" bindingInformation="*:27108:localhost" />
        <binding protocol="https" bindingInformation="*:44349:localhost" />
    </bindings>
</site>

Removing both entries and creating a new virtual directory from the project properties page fixed the problem for me.

Creating a new virtual directory from the properties page

Answer 5

Got solution from this post. Had to delete all localhost certificates and repair IIS Express. Thanks @ShaTin

https://stackoverflow.com/a/22818853/853295

Make sure to remove any previous 'localhost' certificates as those could conflict with the one generated by IIS Express. I had this same error (ERR_SSL_PROTOCOL_ERROR), and it took me many hours to finally figure it out after trying out many many "solutions". My mistake was that I had created my own 'localhost' certificate and there were two of them. I had to delete both and have IIS Express recreate it.

Here is how you can check for and remove 'localhost' certificate:

On Start, type -> mmc.exe, File -> Add/Remove Snap-in..., Select Certificates -> Add> -> Computer account -> Local computer, Check under Certificates > Personal > Certificates. Make sure the localhost certificate that exist has a friendly name "IIS Express Development Certificate". If not, delete it. Or if multiple, delete all. On Visual Studio, select project and under property tab, enable SSL=true. Save, Build and Run. IIS Express will generate a new 'localhost' certificate.

Note: If it doesn't work, try these: make sure to disable IIS Express on VS project and stopping all running app on it prior to removing 'localhost' certificate. Also, you can go to 'control panel > programs' and Repair IIS Express.

Answer 6

The steps followed by me to resolve this (I am using vs2015)

1)Go to control panel

2)Add Remove Programs

3)Repair IIS Express

4)Restarted my computer

4)Next go to my documents->IIS Express->Config Files

5)Take a copy of them and Remove those files from there

6)Delete all items C:\Temp

7)Check for .vs folder in your sln file and goto config folder in it

8)Take a copy of that as well and remove the files inside it

9)Clean your solution

10)Restart Visual studio

11)Build and run

(I copied clean config files from my colleagues machine - in locations mentioned above
1]In Documents
2] .vs folder
I suppose Just running IISExpress and it will recreate the file for you. The exe is located at: "c:\Program Files\IIS Express\iisexpress.exe". )