HANA DB connection not stable, System Error : Socket Closed

Dear All,

Today i get error when connect from SAP B1 Client to HANA System, the company list not show.

I try to check my SLD, but i can't login, the error message say "Please confirm that SLD is started!".

i follow the solution from this thread http://scn.sap.com/thread/3432134

but when reinstall the Server Tools, i get this message :

And then i try to connect from HANA Studio, but i get this error ( picture )

sometime when i'm refresh the connection button, the connection is good. but just a second, the connection already lost again.

any suggestion for this error?

Thanks before,

Herry