Apple review team timeouts on connection to dedicated server

Our game is being reject by apple because on their side they’re not able to connect to our dedicated servers to play the game. On all ios devices and network setups(ipv4,ipv6, wifi-gsm) we tested we were able to connect to dedicated server and play the game without problem. But apple review teams devices timeout while trying to connect to our dedicated servers. As seen from logs seems like handshake is not received on their side. Has anyone faced same issue? Logs are attachedlink text