Few reasons: not other Converter Server has different version; different Converter port or other program listening on this port; firewall and similar. HTH
YES U R CORRECT, THE VERSION I M TRYING TO CONNECT IS A DIFFERENT VERSION i.e.
SOURCE VERSION: 5.0.1 875114
dESTINATION VERSION 4.0.1 161434
i m able to connect with same version of vmware converter i.e.
SOURCE VERSION: 4.0.1 161434
dESTINATION VERSION 4.0.1 161434