'Problem reach Azure FunctionApp for 'The remote name could not be resolved' error

I have an Azure FunctionApp, it is working and is healthy, but sometimes I get an error 'The remote name could not be resolved: 'xxxxxxx.azurewebsites.net'' when try to call.

I'm using Consumption plan that has max timeout 10min, can this cause mentioned issue if the process take more time and reach timeout?

Or can function app cold start cause similar problems?

What else to check?

thanks for any hints

azurednsazure-functions


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