Hi Manish - Thanks for quick response
I am able to add the sync server to firewall but not progress. Please see more details below.
I have VPN but I turned it off while trying the sync.
So far I only tried Wi-Fi sync
No error, it is keep spinning on my iPhone, I waited for at lest 35 min, where as Wi-Fi server running on Mac and both are in same network.
It is installed from from Apple App store - version 6.8.1 (1060)