lucky015:xiha13:lucky015: Did you also have interleaving disabled?
Sorry what is that?
I'll take that as a no.
Its a component of DSL that can be turned off, The main reason it is turned off is to achieve a lower ping which may match with your Snap speedtest, One of the side effects of turning it off is that it generally lowers your sync rate.
My sync rate improves when interleaving was off.
The opposite of what you say but in cases of low quality line I'm not sure .