Intermittent Packet loss at AWS Singapore EC2 instance using MTR tool

The internet is a big place and packet loss happens because....the internet is a big place. We (AWS) don't have control over the networks that make up the internet. That's made even more difficult because the routing and network landscape can change on a second-by-second basis.

That said: Because we are interested in trying to help when our customers are having a bad experience we do try - even in cases where we can't influence things directly. Here, the best thing to do is to raise a ticket with the support team so that we can try and diagnose which providers might be an issue (or even if there is an issue on our network).

Edit after seeing a comment on the original question: Don't do ping/traceroute to a router (especially one you don't control) as it will most likely be unreliable especially if the router is under load. A router's job is to forward packets and it is highly optimised to do that. Sending an ICMP packet (echo request) to the router forces it to use a different code path; create a reply packet; queue that packet; then send it back to you. Most (admittedly, not all) router vendors do not optimise their network stack on the router for this. Under load (even minor load) a router is probably going to drop many ICMP packets. Administrators can also configure their router not to respond to repeated echo requests from a specific source.

I can't say whether this is what is happening here but you're much better off testing against a host that you control. You're also better off not using ICMP but instead creating a TCP session and transferring data between two hosts - it's a much better way of determining packet loss.

I have subscribed to technical support. How do I contact the technical personnel to look into this issue ? I have done the reachability and accessibility analysis under network manager and nothing found. Thanks.