> ## Documentation Index > Fetch the complete documentation index at: https://docs.coreweave.com/llms.txt > Use this file to discover all available pages before exploring further. # Why did my Nodes go NotReady after I deployed Tailscale? A self-managed Tailscale workload that uses `hostNetwork: true` can change the Node's firewall rules. These changes can disrupt access to CoreWeave Kubernetes Service (CKS) internal services. They can remain after the Pod stops, leaving one or more affected Nodes `NotReady`. Tailscale's carrier-grade network address translation (CGNAT) drop rule matches traffic from `100.64.0.0/10` arriving outside the Tailscale interface. CKS uses `100.124.0.0/18` within that range for internal services. When a privileged Tailscale workload installs this rule in the host network namespace, the impact can extend beyond its own Pod. The operator setup in the [CoreWeave chart guide](/products/cks/clusters/coreweave-charts/tailscale-operator) doesn't enable host networking. For proxy failures in that setup, see [Tailscale proxy Pods in CrashLoopBackOff](/support/cks/articles/why-are-my-tailscale-proxy-pods-in-crashloopbackoff). ## Recover affected Nodes If Nodes become `NotReady` after you deploy a self-managed Tailscale workload, follow these steps: 1. Inspect the affected workload's Pod specification for `hostNetwork: true`. 2. If host networking is enabled, stop the controller or workload that created the Pod. Update its deployment configuration to prevent the Pod from being recreated. If you delete only the Pod, its controller can recreate it. 3. If affected Nodes remain unhealthy, [contact Support](/support/contact) with their names and the Tailscale workload configuration. Host firewall changes can persist after the workload stops, and recovery may require a support-coordinated reboot. After recovery, verify that the affected Nodes return to `Ready`: ```bash theme={"system"} kubectl get nodes ``` *** [Nodes](/support/cks/tags/nodes) ## Related topics - [Tailscale Operator](/products/cks/clusters/coreweave-charts/tailscale-operator.md)