Domain is not accessible from certain ISPs in India like Airtel, Idea, Vodafone.

Posted January 29, 2022
DNS DigitalOcean Managed Kubernetes DigitalOcean Managed Load Balancers

We get “ERR_CONNECTION_CLOSED” in the browser when connecting from certain ISPs but not from others. However,

Ping is successful
Traceroute and MTR are successful
DNS propagation has been completed.

When the app is deployed on another cloud provider, it is accessible from all ISPs. This issue occurred only when deployed on DigitalOcean and only with ISPs mentioned above. Is there any other method of troubleshooting this?

The app is deployed using DigitalOcean’s Managed Kubernetes platform and exposed using loadbalancer. Also, the domain doesn’t appear on any of the common blacklists.

viplav

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arvindmaharajan • February 8, 2022

Hi Viplav,

Which service provider are you using to manage your DNS settings?

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