I got frustrated trying to figure out what was causing my line noise issues, so I wrote a little app to scrape and graph my ADSL router stats.
I've open-sourced it on github, it currently works for my Sagem F@ST2504n router. It requires Java 7, which you may or may not view as a good thing. It doesn't require any firmware changes or anything, so it should just work on a stock router.
If you think it would be useful you can download it from
Feature requests are welcome.