I have Motorola Surfboard 5120, my provider is Comcast. My line speed should be 6144/384. I noticed that my download speed is not even close to what is promised by Comcast (checked w/ speed tests and w/ ftp downloads), I don't get more then 2600 kbps. I checked my wiring (the modem has a dedicated line split of the main line with a 3-way splitter before any TVs), could not find any flaw there. Before, I had DSL and there, I knew right away what was wrong w/ the line, when I got the specs from the modem, here unfortunately I don't know how to interpret it:
Downstream Value Frequency 597000000 Hz Signal to Noise Ratio 37 dB QAM QAM256 Network Access Control Object ON Power Level 9 dBmV
Upstream Value Channel ID 3 Frequency 27000000 Hz Ranging Service ID 3976 Symbol Rate 2.560 Msym/s Power Level 38 dBmV
I hoped to find a line where the modem tells w/ what rate it actually synced or any other hints about my speed but nothing.
Any suggestions?
Martin