ISSUE
Following an update to the latest version DualShield Authentication Server and IIS Agent, end users are no longer able to access a web SSO app such as OWA.
RESOLUTION
Open Java options ( see How to Reset the sa Password in DualShield which demonstrates how to launch Java Options)
Append this line..
-Dorg.apache.xml.security.ignoreLineBreaks=true
Save and restart the DualShield Server service.