You may be unable to log on to other EPM System products for these reasons:
Performance is unacceptably slow because the group URL and group filter are not limiting the number of groups returned by a search.
You are using invalid logon credentials.
The server hosting the product is not connected to the servers hosting user directories and Shared Services, so you cannot be authenticated as a user.
Perform these tasks:
Review SharedServices_SecurityClient.log (on the server hosting the product) and SharedServices_Security.log (on the server). See Configuration Files
Check the Web application port to ensure that you are using the Web server.
If group cache errors exist, stop Shared Services and refresh the cache.
If authentication errors exist, verify that the user URL is correct.
Ensure that the user ID and password are correct.
Ensure that the server hosting the product can connect to the servers hosting the user directories and Shared Services.