Unable to save List Viewson SharePoint 2013

Cannot complete this action.

Please try again.

The URL has this <http://sitename/_vti_bin/owssvr.dll?CS=65001>

I did some research but no tracing is enabled (AS I said, this is a brand new application). I was able to edit the view from the app server but doesn't work outside the server.

Some Info:

DMZ, Using Claims Based Auth & Kerberos

Any help will be really appreciated.