Joan:

This is not an issue that can be resolved over a forum. Most likely your problem is related to the hardware and/or network environment.

Assuming that your client is still running the same hardware as they were last year then it would appear that the hardware has started to fail. This could be as simple setup issue that needs to be corrected or it's past time the server was replaced.

Does your client work with a local Adagio Consultant that they can contact?