Hi guys. We have recently had the same experience. (https://groups.google.com/g/grpc-io/c/q5WP6MYtpNY)The
problem occurred only under the heavy load and sometimes it took up to 2 hours to catch it. As you recommended, enabling TLS resolved the problem.
Could you give any advice for the further investigation? And Y enabling ssl so coordinately resolves the issue?
PS enabling SSL termination did not help.