I had been having line problems on ADSL, and have recently switched to 20MB VDSL, but it seems even less stable now.
Here are my stats from my new VDSL router:
SNR: 26.7 (Up), 26.8 (Down).
Attenuation: 35.6 (Up), 17.6 (Down).
They look good, but my line keeps dropping...