D-Link DI-524UP Owner's Manual page 51

The user may also set QoS by specific protocol. To enable QoS per protocol, first click
the Application radio button which will reveal the preceeding screen for the user to
configure. Ensure that the bandwidth does not exceed the incoming bandwidth from the
ISP or it will cause other devices on the LAN to slow down due to decreased bandwidth.
Check with your ISP for more information on the bandwidth allotted to your account.
QoS Control by Protocol
Advanced > QoS > Application
Click the Enabled radio button to enable QoS priority by
application. Information coming from this application will have
the highest priority on the LAN. This means that information
originating from this device will be sent to other devices on the
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