DNN-Forum

This is a known issue with the default configuration of the RadEditor provider for DNN. You need to remove the XHTML validator module from the editor tools file, since it is not compatible with the DNN URL rewriter. Open the editor's tools file at ~/controls/RadControls/Editor/ToolsFile.xml and remove this line:
 

module name="RadEditorXhtmlValidator" dockingZone="Module" enabled="true" visible="true" dockable="true"

The rad editor functions fine logged into a Host account.  When logged in as the admin of a subportal attempting to update any content using the rad editor results in being logged out of the portal and the update not taking effect.

The host account works fine , subportal admins are affected.