I'm some distance from the cabinet for FTTC and getting the absolute minimum from the estimated speed - 3.9Mbps. Previously on ADSL, I was getting 3.7Mbps sync.
Accordingly, Plusnet have advised that it is operating within spec.
You can guess I'm not happy with the 0.2Mbps speed increase.
I've tried the Plusnet supplied microfilter over my own BT vDSL Interstitial Faceplate and that dropped me to 3.1Mbps. That makes me think hardware changes can make a big impact.
Is there any better VDSL modem or microfilter out there rather than the Plusnet supplied ones for marginal areas? I don't need wireless or USB connectivity.