Follow the steps as given below-
1) Click on Start Button.
2) Select Run From Start Menu.
3) Type gpedit.msc
4) Expand the [Administrative Templates] branch.
5) Then Expand the [Network] branch.
6) Highlight(Select by Single Click) [QoS Packet Scheduler].
7) Double-click [Limit Reservable Bandwidth] (Available in Right Side Panel) Check(Select By Single Click on it) [Enabled]