[Sephiroth]

As Mon General has pointed out, you are on QPSK upstream modulation. Let me explain.

On an upstream with a satisfactory noise level (measured at the VM end), you would modulate at 16QAM, which is 4 bits per codeword.

With a pooir noise level, the other end drops your modulation to the more noise tolerant QPSK, which is 2 bits per codeword.

The noise could be caused anywhere on the upstream, and in old infrastructure areas possib;y at the optical node in your street locality.

Everyone on your upstream channel will have a similar problem to you, because instead of a raw capacity of 20 meg being available (at 16QAM), it's only 10 meg which means the upstream will saturate sooner.

So yes - when they upgrade your area for 100 meg, this sort of thing should get sorted out.

HTH.