Upload Session is Empty and download Session is creating RPF files but JObs showing Available Status in AX 2012 Retail

Hi ,

I am facing Issue in Retail AX 2012 R3. My all Connections for ASYNC Client, Async Client Configuration tool , Website are connecting properly.  When I am Running all jobs and seeing Download and Upload Session history.

1) Upload session Form is Empty and there is no Data in Working folder of upload session so its not transferring records in MessageDB and Channel database.

2) Download session All jobs are showing in Available status but not executing its showing Always in Available Status. But when I am checking in message DB there in -- Download Session Table all jobs came in available status. But not any single record Transferred in Channel Database tables.

Please help me and give me some solution. As its very urgent.