said by DarkMage1:Connecting through the router or directly to the modem yields similar results.
Just trying to rule out obvious problems. You upstream power level is much higher than mine, but it isn't out of spec.
I have noticed a wireless computer using an N-wireless works fine, but a G-wireless works at normally about half speed (12-16 Mbps). I do not have a good explanation.
said by My readings :
Downstream
Freq/Power: 663.000 MHz -1 dBmV
Signal to Noise Ratio: 38 dB
Modulation: QAM256
Upstream
Freq/Power: 30.700 MHz 32 dBmV
Channel Type: DOCSIS 2.0 (ATDMA)
Symbol Rate: 5120 kSym/sec
Modulation: QAM64