Fiber + Coax, Slow Upload


We are running a Peplink Balance 210. We have a Cogent 50x50 fiber connection and TW/Spectrum 100x10 coax connection. We have traffic split evenly between the two lines, but I’ve noticed that our upload tends to hover around 9mbps. Our outbound policy has a weighted balance of 10:10.

Does anyone have any ideas on how I can narrow down the upstream issue?