Technical Tip: After EMS upgrade getting the error {"result" :{"retval": -2, "message": "Server encountered an error, please try again later"}}

[fatihseyligli]

Description	This article describes how to solve the console error {"result" :{"retval": -2, "message": "Server encountered an error, please try again later."}} After the EMS upgrade.
Scope	FortiClient EMS.
Solution	After the EMS server build upgrade, the console access may be unaccessible by receiving the following error even though the upgrade has been completed successfully: It is possible to follow the steps below to solve this issue: Go to Task Manager -> Services -> FCEMS_Notify is stuck at the 'Starting' state: Open SQL Server Configuration Manager. Enable SQL Server Browser Service. Restart SQL Server Browser Service. Now FCEMS_Notify service should be running. However, the FCEMS_DAS service is in the stopped state: Open SQL Server Configuration Manager. Protocol for FCEMS, If TCP/IP is disabled, enable it. TCP/IP -> Properties, it should be configured the port to 1433. TCP/IP > 'right click' -> Enable. Restart SQL Server (FCEMS) service. Now, it is possible to see all FCEMS_services are running. EMS GUI should be accessible.