Speed Tests still mostly come up low, but sometimes are giving better numbers.  I connected directly to the modem with another PC, and it shows that connections on both lines are "up" and my connection status is listed as ADSL2+ADSL2 Bonded, so perhaps everything is working fine.  This is a big adjustment coming from the slightly more bandwidth I was used to for the last 10 or so years.  I hope a faster provider gets me connected soon!