All over the RTCS code I see:
IPCFG_default_ip_gateway = 0
What does it means gateway = 0? Shouldn't it be some valid gateway ip address?
It depends on your network. If there are gateways, you have to assign its IP address to this variable. Be sure you have also enabled RTCSCFG_ENABLE_GATEWAYS in your user_config.h.
Retrieving data ...