If you find that Bandwidth Control is not shaping your traffic, you may need to either enable QoS or, if this is already enabled, you will need to add your WAN Bandwidth to the QoS settings. This is found at Config > Network > Advanced > QoS.
Once QoS is enabled, you will find another row of tabs below the Advanced tabs. Go to WAN Bandwidth to enter your bandwidth. Keep in mind, this is entered as Kbit/s, so you will need to multiply your Mbit/s speeds by 1000.Follow