# Modifying Management Cluster - Update EKS Subnets

**URL:** <https://forums.suse.com/t/modifying-management-cluster-update-eks-subnets/36530>\
**Category:** General\
**Created:** [December 21, 2021, 10:42pm UTC](https://forums.suse.com/t/modifying-management-cluster-update-eks-subnets/36530 "2021-12-21T22:42:35Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![sami](https://avatars.discourse-cdn.com/v4/letter/s/35a633/32.png) [@sami](https://forums.suse.com/u/sami)\
**Post date:** [December 21, 2021, 10:42pm UTC](https://forums.suse.com/t/modifying-management-cluster-update-eks-subnets/36530/1 "2021-12-21T22:42:35Z")

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Hi all,

I’m trying to figure out a way modify a management cluster’s configuration so that I can add some newly created subnets to my node groups. I can manually change the subnets in the AWS autoscaling group, but when I do Rancher complains about it stating a syncing error.

I’ve been trying to update the management cluster’s YAML but when saving I’m presented with this error:

```auto
{ "data": "404 page not found\n" }

```

Is there a way I can edit the management cluster to specify these node groups? Perhaps there’s a different method where I don’t actually need to modify the management cluster’s configuration, if there is I would love to know how to do it.

Many thanks.