If DSLReports is giving you an A instead of A+ why does this occur? Does that mean that Anti-Bufferbloat isn't working fully? 


DSLReports is a website which can be used to run a speedtest on your connection. As part of the results, it measures how your connection handles 'Bufferbloat' (congestion) by creating congestion and then testing your ping.

DumaOS contains the world's best QoS, which prevents Bufferbloat from building. So in theory, this should mean that the DSLReports should return the best possible Bufferbloat result, 'A+'. However, in practice it returns an 'A' rating, one below a perfect A+.

The reason for this is because DSLReports incorrectly misreads the DumaOS Deep Packet Inspection feature, which analyses the first eight packets of a new connection/ DPI is very useful because it allows games to be prioritized automatically in Traffic Prioritization. You can also see Deep Packet Inspection in action on the Network Monitor; if you click on a bar in Network Snapshot you can see the applications that are currently using a device's bandwidth.

DSLReports misunderstands this inspection for a small ping spike. No ping spikes actually occur, DPI does not interfere or slow down your connection in any way. In fact, the XR500 uses hardware acceleration which allows it do QoS at gigabit speeds, far beyond the reach of most routers, so it truly is one of the most effective Anti-Bufferbloat tools you could find.

If you wish to verify this yourself, then you can easily do so by using a program called PingPlotter. All you need to do is:

  1. Open Pingplotter and ping a common server e.g. google.com
  2. Saturate your connection as much as possible (e.g. download files, stream HD videos etc), then do a PingPlotter test and see how much your ping rises.
  3. Then enable DumaOS QoS (e.g. set Anti-Bufferbloat to 'Always' mode and the sliders down to 70/70. You will then see your ping return to pre-congestion levels. It will dot this faultlessly.

For full test steps, see this link