Issue while creating the Channel URI for push notifications in Windows

Question

I am trying out the Windows Notification Service (WNS) to have push notifications for my Windows application. But I am facing an issue while creating the token. What is wrong here? (Trying to use C++ WinRT APIs).

In application where I am using Windows AppSDK:

This is the below function where I am requesting the Channel URI.

winrt::Windows::Foundation::IAsyncOperation<PushNotificationChannel> RequestChannelAsync()
{
    // remote Id is the Azure AppId
    auto channelOperation{ PushNotificationManager::Default().CreateChannelAsync(remoteId) };

    // Setup the in-progress event handler
    channelOperation.Progress(
        [](auto&& sender, auto&& args)
        {
            if (args.status == PushNotificationChannelStatus::InProgress)
            {
                // This is basically a noop since it isn't really an error state
                std::cout << "\nWNS Channel URI request is in progress." << std::endl;
            }
            else if (args.status == PushNotificationChannelStatus::InProgressRetry)
            {
               
            }
        });

    auto result{ co_await channelOperation };

    if (result.Status() == PushNotificationChannelStatus::CompletedSuccess)
    {
        auto channel{ result.Channel() };

        std::cout << "\nWNS Channel URI: " << winrt::to_string(channel.Uri().ToString()) << std::endl;

        // It's the caller's responsibility to keep the channel alive
        co_return channel;
    }
    else if (result.Status() == PushNotificationChannelStatus::CompletedFailure)
    {
        co_return nullptr;
    }
    else
    {
        co_return nullptr;
    }

}

Reference: https://github.com/microsoft/WindowsAppSDK-Samples/blob/main/Samples/Notifications/Push/cpp-console-unpackaged/cpp-console-unpackaged.cpp

The channelStatus remains in Started. It doesn't print the line 'In Progress' and comes out of the loop. Why this is happening?

Edit

The channel URI gets request in Progress. But, after even waiting for more than 10 minutes, I am not able to reach at any of the else if condition where I am checking the result.

But it goes inside this condition of below if. Am I doing anything wrong?

winrt::Microsoft::Windows::PushNotifications::PushNotificationChannel
RequestChannel()
{
    auto task{ RequestChannelAsync() };
    if (task.wait_for(std::chrono::minutes(10)) != AsyncStatus::Completed)
    {

            IAsyncInfo  infor         = task.as<IAsyncInfo> ();

            uint32_t    id            = infor.Id ();
            HRESULT     errorCode     = infor.ErrorCode ();
            AsyncStatus currentStatus = infor.Status ();

        task.Cancel();
        return nullptr;
    }

    auto result{ task.GetResults() };
    return result;
}