Unable to access the GKE Cluster on the GCP Console

I was trying to access the GKE Cluter on GCP UI, I was not to access then through Multiple Browsers.
We checked with different Users and Different Machine as well.

We are getting following error:

There was an error while loading /kubernetes/list/overview?project=name . Please try again. It may be a browser or network issue. Go to the loading issues help page to troubleshoot the issue.

Request ID: 15041905105513098350.

We have Multiple, Project and GKE is accessiable through other projects, We are facing this issue in 2 Projects only.

I am not sure, if this is related to local connectivity to Cluster, Because I am unable to access the Cluster from my Local Machine.

It is returing following error:

error: could not list namespaces (is the cluster accessible?): failed to list namespaces from k8s API: Get “https:///api/v1/namespaces?limit=500”: dial tcp :443: i/o timeout

Is this cluster running in Google Cloud?

Try reaching to Kubernetes API server using -

curl https://:443 --insecure

Might be because of network issue.

If it is because of network issue -

make sure your network allows outbound traffic to Kubernetes API

Yes, the cluster is still running in the console. our application is being served

But, we are not able to connect to console