Proven Sharer

Re: Unstable bitrates (upload speeds)

It's easy to see why your uploads are slow - the power level on all four upstream [US] channels is at or exceeding the max allowed.  This is usually caused by having too much line and splitter loss in your home cabling and the outdoor cable connection.  If you have both TV and internet service, the modem has to be on a two-way splitter from the cable drop.  If no TV, drop goes directly into the modem.