Thanks for letting me know. Overall, we use them for high availability and non mission critical tasks anyways but now that you say this, it gives me more confidence in recommending it. It was strange, it only affected one of the two GKE cluster (both had preemptive nodes). I tried debugging and found that it wasn’t able to even ping any external ips (which is why I thought maybe preemtible nodes also might have networking issues). There weren’t any notices about general networking outages within the last +\- 48 hours (I subscribe to the RSS GCP outages via slack). I ended up manually rebuilding the nodes (non preemtible nodes temp) and it went away. As soon as healthchecks were failing, I created a debug container and kubectl exec -it bashed in and saw that it wasn’t able to connect to the internet. It could ping/telnet internal IP databases just fine. It does warn me that it’s in beta so, again maybe you’re working through some things but thought you should know in case other people have experienced this.