Add-AzureRmAccount : Unable to find an entry point named 'GetPerAdapterInfo' in DLL 'iphlpapi.dll'

Question

I am running Azure Automation Runbook which has PowerShell script to restart the Azure Web App at defined scheduled. While test running the below script I am getting error:

$connectionName = "AzureRunAsConnection"
$servicePrincipalConnection = Get-AutomationConnection -Name $connectionName
$null = Add-AzureRmAccount ` 
    -ServicePrincipal ` 
    -TenantId $servicePrincipalConnection.TenantId ` 
    -ApplicationId $servicePrincipalConnection.ApplicationId ` 
    -CertificateThumbprint $servicePrincipalConnection.CertificateThumbprint

$null = Select-AzureRmSubscription -SubscriptionId 'SubscriptionID'

Restart-AzureRmWebApp -ResourceGroupName 'RGroupName' -Name 'webappname'

Error details:

Add-AzureRmAccount : Unable to find an entry point named 'GetPerAdapterInfo' in DLL 'iphlpapi.dll'.

• $null = Add-AzureRmAccount
• CategoryInfo : CloseError: (:) [Connect-AzureRmAccount], AadAuthenticationFailedException
• FullyQualifiedErrorId : Microsoft.Azure.Commands.Profile.ConnectAzureRmAccountCommand

Is this error related to having not enough access?

Thank you!

Answer 1

I can reproduce the issue with your script on my side.

To fix the issue, change your script into the one below, it will work fine.

Note: Navigate to your automation account -> Modules -> make sure the modules AzureRM.Profile, AzureRM.Websites are existing, if not, click Browse Gallery to search them and import.

$connectionName = "AzureRunAsConnection"
try
{
    # Get the connection "AzureRunAsConnection "
    $servicePrincipalConnection=Get-AutomationConnection -Name $connectionName         

    "Logging in to Azure..."
    $null = Add-AzureRmAccount `
        -ServicePrincipal `
        -TenantId $servicePrincipalConnection.TenantId `
        -ApplicationId $servicePrincipalConnection.ApplicationId `
        -CertificateThumbprint $servicePrincipalConnection.CertificateThumbprint 
}
catch {
    if (!$servicePrincipalConnection)
    {
        $ErrorMessage = "Connection $connectionName not found."
        throw $ErrorMessage
    } else{
        Write-Error -Message $_.Exception
        throw $_.Exception
    }
}

$null = Select-AzureRmContext -Subscription 'SubscriptionID'
Restart-AzureRmWebApp -ResourceGroupName 'RGroupName' -Name 'webappname'