R7000 Quality of Service Speed Test 50% of Actual Speed

Thank you for replying. Let me clarify that I did not actually enable QofS. On the Basic tab of the menu select Quality of Service. If QoS is not enabled the page the only option is an Enable QoS check box. If you check the box other options appear, one of them being a speed test. You can run the test but but unless you check the Apply button before leaving the page QofS is not enabled. If you run a test and uncheck enabled the page the test results and optional settings vanish. Later if you return and check the Enable box the stored results appear.

Thus the mystery- QoS menu page speed test 400 to 500mbps but test numbers on an attached pc of >900.

The cure was one or a combination of two things. Resetting the routere to the factory defaults and elimination of line noise in the coax going to the modem and the X-1 DVR.

Prior to the line work we saw briefly 600 and 700mbps from the router, then it settled at around 400 and then dropped to around 190 down and 12 up.

The rest of the post was to point out that line line noise on the coax was was a sort of geewiz for those with comcast service