On Netgear DGND3700v2 I have attenuation 23.0/15.3 dB. On D-Link DSL-2740B I've had 24.0/14.4 dB. The attenuation is significantly lower on beginning of downstream and end of downstream.
The first graph is attenuation on D-link. Second graph is attenuation on Netgear.
Furthermore, upstream is better on Netgear despite higher upstream attenuation. I have 1237 kbps instead 1193 kbps.
Unfortunately Netgear also doesn't show correct upstream Hlog and QLN datas on showtime. Is it problem with DSLAM?
Best regards
konrado5