I have an intranet with an IIS 7.5 server that servers up a Default Web Site, and a second site which is bound with a host header of "orderentry". This works fine.

Now I need a third site. I set up a DNS record for it, and bind the site to "oepreprod"

When I test this new site, instead of going to the new site, it goes to the Default Web Site. I cannot find a reason why this is not working as expected.

This is the binding that it shows in the site properties:

http:10.20.20.94:80:eopreprod

This is the request that is made to go to the site:

GET http://oepreprod/ HTTP/1.1
Host: oepreprod
Connection: keep-alive
Pragma: no-cache
Cache-Control: no-cache
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
DNT: 1
Accept-Encoding: gzip, deflate, sdch
Accept-Language: en-US,en;q=0.8

As you can see, the header is properly set.

I don't know what else to try to get this to work.

I have tried restarting IIS, but it did not change anything.

How can I resolve this?