Hello,

 I find it better to get sound advice from official support rather than risk advice from third party knowledge.

 I took a look at Bandwidth Control. Set it up as required and suggested. That was no problem.

 However I ran an internet speed test for diagnostic and noticed through tests than just by having Bandwidth Control activated, irrespective of adding a rule, my router is losing 7Mbps of download speed compared to having Bandwidth Control deactivated.

I would have thought just having Bandwidth Control activated would not automatically cause the loss of data. I tried to increase Total Downstream Bandwidth to but will not allow past 40000. 

So a stable 37Mbps is dropping to 30Mbps just by activating Bandwidth Control. What is going on? 

My goal is to limit the Bandwidth of an Xbox to 15Mbps maximum, but if I am losing 7Mbps just through initial set up I hardly see its worth it.