All I can say is your stats are bad, which must be due to an issue on your line.
Speed should be over double @ 16.5 Meg.
NM is normal, but I'd not expect Attenuation to vary that much, using same router, as long as it's always shown "Mode : ADSL2+".
EDIT: Please post all the stats verbatim.
1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 19 Meg WBC
Edited by XRaySpeX (Sun 03-Feb-13 18:42:36)