have you installed the latest possible firmware on your modem?
something that could be happening is that sometimes when monowall sends or gets things from a source, it may be asking for something that isn't there, when that happens, usually the request is disregarded or met with an error, but in your case, monowall may be asking or telling your cable modem something that, due to old firmware, could just look like jibberish and your cable modem doesn't know what to do with that.
has this situation always been the case? is this a recent problem? are you behind any other networks? most importantly, is your cable modem set up as a bridge?
also, sometimes modems die, non-industrial network devices tend to burn out much the same way lightbulbs do. what could be happening is once your modem is nice and warmed up after a few hours of dealing with monowall, an old chip in there can't handle the thermal change, and flips out.
|