# Flannel Connecting to Etcd Cluster Using AWS ELB Reports ERROR

## Problem

Cluster running on AWS and have an ELB, the flannel container logs reports below errors:

{% tabs %}
{% tab title="flannel logs" %}

```yaml
E0503 08:10:22.781361 1 watch.go:43] Watch subnets: client: etcd cluster is unavailable or misconfigured; error #0: unexpected EOF

E0503 08:15:08.904157 1 watch.go:171] Subnet watch failed: client: etcd cluster is unavailable or misconfigured; error #0: unexpected EOF
```

{% endtab %}
{% endtabs %}

## Environment

* Platform9 Managed Kubernetes - v5.3 and Higher
* Flannel CNI
* AWS ELB

## Cause

* This is a known upstream issue with Flannel <https://github.com/flannel-io/flannel/issues/508> and <https://github.com/flannel-io/flannel/issues/528> where AWS ELB close inactive connection and flannel trying reconnect.
* There are NO impacts and these logs can be ignored.

## Resolution

* Increase the ELD idle timeout from AWS console (under Load Balancing -> Loadbalancers -> Healthcheck -> Edit Health Check -> Response Timeout.)

{% hint style="warning" %}
**Warning**

Timeout value will be reset on any cluster update operation so should reapply post upgrade.
{% endhint %}


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