> For the complete documentation index, see [llms.txt](https://platform9.com/kb/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://platform9.com/kb/smcp/solution/master-node-in-schedulingdisabled-state-with-error--nodenotsched.md).

# Master Node in SchedulingDisabled state with error "NodeNotSchedulable"

## Problem

* Master node continues to be in SchedulingDisabled state with NodeNotSchedulable error.
* Below error is seen in messages of the master node:

{% tabs %}
{% tab title="Javascript" %}

```javascript
Nov  7 13:00:24 master.example.com Keepalived_vrrp[49446]: Opening file '/etc/keepalived/keepalived.conf'.
Nov  7 13:00:24 master.example.com Keepalived_vrrp[49446]: Cant find interface eth3 for vrrp_instance K8S_APISERVER !!!
Nov  7 13:00:24 master.example.com Keepalived_vrrp[49446]: VRRP_Instance(K8S_APISERVER) Unknown interface !
```

{% endtab %}
{% endtabs %}

## Environment

* Platform9 Edge Cloud - v5.3 and Higher.

## Cause

* Incorrect interface name provided during cluster creation.
* Actual interface name was eth1 and name provided during cluster creation was eth3.

## Resolution

* Rename the interface name on the node to same as what is provided during cluster creation


---

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