RT-AC66 Drop in D/L Speed - Merlin Firmware

[owlyn]

My ISP plan speed is 200/10, and I typically get 240/12 as Comcast overprovisions by about 20% That was my speed a few weeks ago. I checked today, and I am getting about 160/12. If I take my router out of the loop and connect directly to my Comcast gateway (Cisco DPC-3939), I get my full speed. AFAIK, I didn't change any settings on the router. I tried going back to Merlin 380_64_1, as I know I had full speed then, but it made no difference.

The only thing that may be different is I started looking a traffic monitoring statistics for the various time periods in the drop-downs, but I don't see how that would affect the d/l speed. Nothing else has changed, I swear.

Any idea what to look at?

 

[john9527]

If you enabled 'per IP traffic monitoring', that will disable NAT Acceleration (also knows as HW Acceleration). In that case, the max speed achievable will be about 150-160 Mbps on the 66U.

 

[owlyn]

If you enabled 'per IP traffic monitoring', that will disable NAT Acceleration (also knows as HW Acceleration). In that case, the max speed achievable will be about 150-160 Mbps on the 66U.

Thanks. I did have that enabled, so I just now turned it off. My speed is a little better (175/12) on ipv4, but much lower (135/12) on ipv6. They are usually pretty close. Still not near the 240/12.

UPDATE: I just realized I had to manually re-enable NAT acceleration. That fixed it! Thanks John, you're a genius!
http://results.speedtest.xfinity.com/result/1502075704.png