I believe there are two DSL modes (profiles). Interleaved and Fast. Interleaved is typically preferred method, as it is more stable, and provides better check

I believe there are two DSL modes (profiles). Interleaved and Fast. Interleaved is typically preferred method, as it is more stable, and provides better checksumming / error correction on noisy lines. Fast has none of this correction/checksumming. But Fast is also 5ms and Interleaves is 50ms. Call your dls provider (?Comcast?) and ask if you can be taken into fast profile.