This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(80, 93%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EE%3C/text%3E%3C/svg%3E)
Hello,
After a migration to 1.25, which who succeeded. All applications hosted on this cluster return an "ERR_CONNECTION_TIMED_OUT" error. Yet I haven't changed anything making the Kubernetes upgrade. I've tried deleting namespaces, deployments, services and ingress but nothing changes. An application gateway is used, the endpoints seem to point to the right place.
Have you had this type of problem before? Do you have any idea of a solution or where I should look, please?
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(172.8, 1%, 26%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERK%3C/text%3E%3C/svg%3E)
HI Eden ,
Is the URL hosted on Application Gateway or Frontdoor? you can refer to the below article to check the relevant scenerio for your configuration and try the steps mentioned.
Please Accept as answer if the reply is helpful
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(76.8, 74%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAN%3C/text%3E%3C/svg%3E)
Hello Eden_Reen ,
welcome to microsoft Q&A, Thankyou for posting for your Query here.
Based on the error message you are seeing, "ERR_CONNECTION_TIMED_OUT", it is possible that the issue is related to network connectivity.
Check if the Kubernetes API server is accessible by running kubectl command in the cluster.
If you are able to connect to the API server, then the issue may not be related to Kubernetes itself.
Check if the application gateway is configured correctly. Make sure that the endpoints are pointing to the right place and that the gateway is properly configured to route traffic to your Kubernetes cluster.
Check if there are any firewall rules or network security groups that may be blocking traffic to your Kubernetes cluster.
Check if there are any issues with your nodes or pods. You can use kubectl get nodes and kubectl get pods to check the status of your nodes and pods.
Hope this helps you. please accept the answer if it helps you .
Hello Eden_Reen ,
If an answer has been helpful, please consider accepting the answer to help increase visibility of this question for other members of the Microsoft Q&A community. If not, please let us know what is still needed in the comments so the question can be answered. Thank you for helping to improve Microsoft Q&A!.
Hello Eden_Reen , If an answer has been helpful, please consider accepting the answer to help increase visibility of this question for other members of the Microsoft Q&A community. If not, please let us know what is still needed in the comments so the question can be answered. Thank you for helping to improve Microsoft Q&A!.
Hello,
Sorry I didn't get back sooner here is a summary of the situation compared to what was proposed:
kubectl command in the cluster. If you are able to connect to the API server, then the issue may not be related to Kubernetes itself.kubectl get nodes and kubectl get pods to check the status of your nodes and pods.
Hello Eden_Reen , Thankyou for replying back and briefing more about issue. Support team will be able to check and help on this by scheduling a call with you if you would recommend to have a meeting. please open a azure support cas If you don't have a support plan enabled on your subscription, I request you to send an email to AzCommunity@Microsoft.com with Subject as "Attn:Vikas" referencing this thread along with your subscription ID. He can then enable your subscription with a one-time free technical support Once the issue is resolved, request you to post the resolution here for the benefit of community.