Team members not adding to Sharepoint project site

[wacNTN]

We have been using PS2003 for over 2 years.
When we added resources to a project and publish the project, the resources
have been added as Team Members to the project's Sharepoint site. However,
in the past few weeks, we have noticed that when we use the process that has
always worked, the users are not being added to the Sharepoint site at all.
What do we need to check to fix this?

Thanks,

Walter