Make sure that you have the modem through as little splitters as possible. Remember that EVERY device you put inline with the cable modem is another obstacle it has to overcome. The cable modem will only try up to a certain amount (around 60db), and then give up.
Put it on the lowest db leg of the first splitter in your residence, if possible. If it doesn't work then, take it to your ground block and see if it works then. If not, then call your service provider.
Some providers can tell you the signal level that THEY [the head end] are receiving. If it's below a certain point, the system will refuse to acknowledge you.
Also see: Upstream Power too High (>55)
last modified: 2002-03-18 22:20:12