Answer for Record with EvoStream on EC2 Instance (Failure) Written by xai on 11 Aug 2015. Posted in Hi Murray, I tried pinging ec2-52-64-89-149.ap-southeast-2.compute.amazonaws.com and failed. Can you ping it from your machine? If not, then you need to use the public IP for this particular amazon instance. Let me know how it goes. Thanks. Xai