Cannot install Enterprise app

Question

Hi,
I created the IPA file along with the plist, uploaded to my IIS server.  From the iPhone/iPad (version 5.x) i was able to view the html that has the link to download the plist using the itms-services protocol.  However, when I click on the Download link nothing happens.  I read what others (who had the same issue) have done but it still does not work.  I even used Apache as the web server but it still does not solve the problem.
I was able to use TestFlightApp just fine so it's not the device.  So, what is so hard about this that I'm not aware of?  I'm using Xcode 4.4 and there is no mentioning of providing the .mobileprovision.  I selected In-House distribution and the IPA and plist files were the two that was created.
Thanks so much if anyone can help me solve this problem.
Kagster
html file
<a href="itms-services://?actiondownload-manifest&url=http://my.company.com/myplist.plist">
  <h1>Download Sales</h1>
</a>
plist file:
<plist version="1.0">
<dict>
          <key>items</key>
          <array>
                    <dict>
                              <key>assets</key>
                              <array>
                                        <dict>
                                                  <key>kind</key>
                                                  <string>software-package</string>
                                                  <key>url</key>
                                                  <string>http://my.company.com/myipa.ipa</string>
                                        </dict>
                              </array>
                              <key>metadata</key>
                              <dict>
                                        <key>bundle-identifier</key>
                                        <string>my.company.com</string>
                                        <key>bundle-version</key>
                                        <string>1.0</string>
                                        <key>kind</key>
                                        <string>software</string>
                                        <key>title</key>
                                        <string>Sales</string>
                              </dict>
                    </dict>
          </array>
</dict>
</plist>

Answer 1

I am having the same issue with a small group of my employees.  In addition, I have a profile that expired Thursday evening that I cannot renew - so all my iOS devices areunable to connect to our MDM which is affecting all of my employees.  This is an extremely un-Apple like issue, much more reminescent of Microsoft.  I sincerely hope that something will be done about the Dev portal dependency for provision, profiles and OTA Enterprise App delivery.