Enterprise Administration > Windchill ESI > Administering Windchill ESI in an ORACLE Applications Environment > Guidelines for Monitoring, Diagnosing, and Resolving Problems > Resolving Problems > Resolving Specific Problems > TIBCO Administrator fails with an "Apache/Tomcat 404" Web browser error
  
TIBCO Administrator fails with an "Apache/Tomcat 404" Web browser error
This could happen if you are using an unsupported web browser version.
To resolve this problem upgrade your web browser to Microsoft Internet Explorer version 6.0 SP1, or later.