<s>[INST] I have 2 EC2 machines on AWS, I'm having trouble making them communicate. How could I troubleshoot it? [/INST] I would suggest ensuring they are in the VPC and have exposed the correct port on both containers.</s>\ <s>[INST] "I've already checked that they are in the VPC and the ports are open, but they still can't communicate. Do you have any other suggestions for troubleshooting?" [/INST] I'm afraid I need a bit more information to help you troubleshoot this issue. Could you give me some additional information, such as the stack trace of the EC2 machines attempting to ping each other?</s>