Internal load balancer : Connection refused

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I am trying to setup a internal load balancer on GCP cloud , and the problem is, when i try to access the same via another instance which falls under same VPC I am facing "Connection refused" error. Firewall rules has been checked as well as cross checked that load balancer and standalone instance which is trying to access are in same subnet.

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Internal load balancers are regional, i.e an instance in us-east cannot communicate with an internal load balancer in us-central, even within the same VPC.

You should make sure that your source VM's subnet is in the same region as your ILB's

As a potential workaround you could use this