I bought an XTE-2005 faceplate a few years ago and it (consistently) gave a few hundres kbps lower sync than the Excelsus dangly I was using at the time, and of my accumulated danglies from several routers only one pair gave lower than the XTE.
It was also more affected by using the telephone.
It is in its packaging in a drawer, along with the high-quality ADSL cable obtained with it, which made no difference at all to anything.
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost
. Internet connection -
Plusnet Value Fibre.
"Where talent is a dwarf, self-esteem is a giant."
- Jean-Antoine Petit-Senn.