gateway timeout from ELB on aws

I have service and a DNS [https://example.com/] which is pointing to Load Balancer in AWS to traffic all the requests. This endpoint needs to be authenticated and returning 504 Gateway Timeout. I can hit the endpoint locally without any problem using postman. But the issue persists on the DNS.

1. There are other endpoints which are working fine.

2. When I do ping example.com, I get redirected to ELB DNS first time but then I get request time out.

   PING : 56 data bytes Request timeout for icmp_seq 0 Request timeout for icmp_seq 1 Request timeout for icmp_seq 2 Request timeout for icmp_seq 3 Request timeout for icmp_seq 4 Request timeout for icmp_seq 5 Request timeout for icmp_seq 6 Request timeout for icmp_seq 7 Request timeout for icmp_seq 8 Request timeout for icmp_seq 9 Request timeout for icmp_seq 10 Request timeout for icmp_seq 11 Request timeout for icmp_seq 12 Request timeout for icmp_seq 13

Need some pointers on debugging this.

https://stackoverflow.com/questions/67247001/gateway-timeout-from-elb-on-aws April 25, 2021 at 04:07AM