libgdx ios app getting rejected for not working on IPv6 network using Ec2 and Kryonet

Question

My App has now gotten rejected twice for not working on an IPv6 network on a device running IOS 10.2 My App was built using these resources and I was hoping someone could give me some insight on where to start looking.

Server:

• Amazon EC2 t2.micro
• IP address is IPv4 however the server says IPv6 is enabled
• All traffic is allowed in security groups
• Windows Server 2016

Libraries:

• LibGDX 1.9.5
• Kryo 2.23.1-SNAPSHOT
• Kryonet 2.18
• MobiDevelop's RoboVM fork 2.3.0

Please let me know which of these is most likely the culprit so I can proceed to fix it thank you!

Answer 1

I got this fixed. I was originally connecting to my servers by the IP address and have now switched it to the DNS. Works fine and made it through app review!