The upper limit of open cursors for Microsoft Dynamics has been exceeded (90).-2

We had this issue on our system and the problem was that the user had no security on the database.  Since there was a login failure the process would retry over and over until the cursor limit was reached then the AOS would shutdown.  Once we granted the appropriate security to the user connection everything worked.  Process involved was putting SQL tracing on a table and the user BMSSA did not have rights to do SQL tracing.  Granted this right and everything worked.