My site was working until I move it to our live site.  We were using a subdomain to set up the new 7.x DNN site.  once completed, I changed all references in the database for subdomain.site.com to www.site.com.  There were only a few and I have done this many times. 

 Once the site was live, everything was working - pages, I could log in, Admin sections worked, etc.. 

My issue is that if I go to an HTML module and make a change, it will hang when saving (loading circle spins for about 30-40 seconds).  Then it will keep the window open (normally it would close after a save).  I close the edit window, and the changes seem to have stuck.  But if I close the Page Edit, the changes are back to what it was before. 

I have gone to different browsers.  I have also had another person try this that has edit rights.  Same outcome. 

If I log in and go to Page Edit mode, text changes are displayed correctly.  When I close Page Edit mode, the changes are back to the old text.  I looked in the database and found the changes had been saved, but the old text is still showing on the html module (I have done this on multiple pages and modules, all do the same thing).

 I have tried to clear the cache multiple times and restarted the application multiple times.

Any suggestions on where to look or what might fix this issue?

I found this question from 11 months ago from a user having the same issue. 

 http://www.dnnsoftware.com/answers/module-will-not-save-edit-changes

Sebastian Leupold mentioned it might be caching.  I found that the HTML module cache settings were set to "File" with a "1200" second cache duration.  Once I changed Caching to "none specified", the changes showed properly in both Edit mode and when edit mode for the page was off.

1.  Why was everything working on the other site.  All I did was change the URL from upgrade.site.com to www.site.com.  The database and codebase are the same.

2. How do I turn off caching for everything.  If I have to go to every module on every page and do this, it will take forever.

3. I have gone to the Host Settings and clicked "Clear Cache" many times.  This obviously doesn't work.

4.  I went to the host settings and changed "Cache Setting" to None, then Authenticated Cacheability to "NoCache".  Then restarted the application.  This did not affect the modules on any page.