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LakeMichigan
LakeMichigan

Reputation: 937

Request timed out accessing AWS Network Load Balancer from certain EC2 instances

I have a Network Load Balancer up and running. I know it is functioning properly because from one EC2 instance i can connect to it fine. However, from others or from my local machine I get "Request timed out" when pinging and "connection timed out" when trying a JDBC connection.

From my understanding Security Groups do not get applied to the Network Load Balancer directly and I should make sure the security group is applied to the target instance. So I am confident it is not a security group issue since I can make connections to the target instance without issue. It is only when going throught the NLB that there is a problem. Also, I have also confirmed the NLB is in a public subnet.

I reviewed Troubleshoot your Network Load Balancer but nothing seems to line up. Could someone please help with what could be the issue?

Upvotes: 0

Views: 1123

Answers (1)

Nikhil
Nikhil

Reputation: 1

I recently came across a similar issue where the fix was to change the load balancer type from 'Instance' to 'IP'.

Please refer this rePost article for details and the fix : https://repost.aws/questions/QUbwjtwhGOTZ-h2eTy3MCjsw/aws-eks-internal-network-load-balancer-nlb-timed-out-while-trying-to-connect-from-underlying-eks-worker-node

Upvotes: 0

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