oh, didnt read that bit
It also says he was on 30 and not 20.
In that case dude if you are in router mode go to 192.168.0.1 (192.168.100.1 for modem mode), sign in, click on advanced settings and something like the connection tab on the left. You are looking for info like
Primary Downstream Service Flow
Max Traffic Rate : 110000000 bps
but you can just post everything including power levels just to be on the safe side