Hi Ujwol,
Thanks for your response, as we do see few handshake errors in smps.log as below :
[2800/9040][Tue Jul 19 2016 08:36:22][CServer.cpp:1948][ERROR][sm-Tunnel-00010] Bad security handshake attempt. Handshake error: 3159
[2800/9040][Tue Jul 19 2016 08:36:22][CServer.cpp:1953][ERROR][sm-Tunnel-00020] Handshake error: Failed to receive client hello. Client disconnected
[2800/9040][Tue Jul 19 2016 08:36:22][CServer.cpp:2121][ERROR][sm-Server-01070] Failed handshake with ***********
[2800/9040][Tue Jul 19 2016 08:36:22][CServer.cpp:1948][ERROR][sm-Tunnel-00010] Bad security handshake attempt. Handshake error: 3159
[2800/9040][Tue Jul 19 2016 08:36:22][CServer.cpp:1953][ERROR][sm-Tunnel-00020] Handshake error: Failed to receive client hello. Client disconnected
[2800/9040][Tue Jul 19 2016 08:36:22][CServer.cpp:2121][ERROR][sm-Server-01070] Failed handshake with *********
Please suggest further action on this. Thanks