QNetworkConfigurationManager doesn't return all configurations

QNetworkConfigurationManager manager;
QList<QNetworkConfiguration> allConfigs = manager.allConfigurations();

In Symbian^3 with Qt 4.7.1, the result of this code is always a allConfigs empty list.

I have tested in C7-00 and N8, with the same result, an empty list.

I also tested in Symbian 5th Ed. phones (5230 and 5800 XM), and in Symbian 3rd FP2 Ed. phones (6710 Navigator), and in all of them works as expected, allConfigs was not empty.