Power Shell not recognizing the Azure subscription after 12 hours

Dear Friends,

I have configured Windows Azure PowerShell and kept the Subscription details in a separate config file. I have called the config file by providing the location path. Every time when I am running the PowerShell scripts, it will include the Azure Subscription details from the mentioned path and the jobs will be automated.

For past few days, the PowerShell script is unable to recognize the subscription details. This happens for every 12 hours.

Hence I am manually importing the PublishSettingsFile and configuring it.

Can anyone suggest some solution for this..

Thanks in Advance! :)