DBACockpit not Working except one Client mechine

Hi Experts,

I'm experiencing strange problem, i have one server and number of client machines.In one of them i can access DBAcockpit without any errors. While from others i Can't.

im using SAP ECC 6.0 and sybase ASE 15.7 as database

And i have tried it from GUI Patch level with 9,7 but no use ...