Crystal reports using Stored Procedures returning Database Login

We are also having this issue, did you find a solution?  I'm thinking I need to redo process set?

We have a few Crystal reports that utilize a Stored Procedure and all of a sudden users are getting a Database Login popup that is calling for a password.  When they click the ok button and Application error displays stating an "Invalid login" for  (Login:userID:server:database:table) = lists the user id: "sysprogress":"LSIEPICOR9":"epicor905":""usp_Lists the Stored procedure name:1".

Nothing has been changed with network security, so we are completely puzzled by this.  There are a couple of reports that users could run yesterday morning, and later in the day they could no longer run them.

 

Any ideas, suggestions?

 

Thanks all.

 

Carol