I am also a newbie DirecWay customer (had it for about 1 month now) and I, too, have experience the ups and downs of speed from day to day. I have also noticed that I can go from aroud 400k to about 1000k in the same hour! Every now and then if my speeds seem to get stuck in a rut I will shut down my computer and turn of my DW6000 and leave it off for about 5 minutes then turn everything back on and most of the time my speeds will come back up to around 950k (sometimes 1100k if I am lucky). I am beginning to think that this is just the way its going to be. My signal strength always stays at around 65 to 70. Never lost a connection before, thank godness. Wish I could help you but I just dont know enough about the technical stuff.
DW6000, Windows XP SP2, 1.0GB SDRAM, 200GB HD, Longitude 83W, Frequency 1390, FapMon 2.6, DW6kSS, SatSpeed 2.2, LAN Proxy On, and probably other stuff I dont have any clue about!!!