Hey Guys & Gals,
I just called up my ISP and signed up for their 100mbps internet service over the new Docsis 3.0 system. They came to drop off the new modem yesterday. It connects up fine, and the light shows blue on the motorola modem showing a bonded downlink which should theoretically give me my 100mbps of bandwidth. Unfortunately, the speeds are only reading about 35mbps though the ISP's speedtest, speedtest.net, bandwidthplace.com, testmy.net, while doing multiple linux downloads, using newsgroups, etc. I have tested the thing to hell, it isnt going any faster.
The cable connection into the house is only split once in the basement by a powered motorola splitter/amplifier. I tried also hooking a 3db attenuator on the modem's end and no change in speed. Out of curiousity, I decided this morning to unhook the main cable connection into the house from the splitter, and stick it right into the back of the modem. To my suprise, the speedtests were instantly showing 100+ mbps!!!
After this, I tried changing out the splitter for a different one, and had the same issue with it only going up to 35mbps. for some reason, it just seems that if the main service entry is split at all by any type of splitter, the connection for the internet just goes to sh*t.
I called my ISP and they say that the levels are all where they should be etc etc, and they are suggesting that my computer is the problem.
I am a certified computer tech, as well as a network tech. I have already ruled out the computer, switches, routers, or any other networking gear as a possible cause to this problem. It simply seems to be something to do with the cable service into the house.
Does anyone have any similar experiences, or some ideas I could try to resolve the issue? I am paying quite a bit of money for this, and I want to get the speed I am paying for.
Thanks
John
Details:
Motorola SB6120 is the modem
ISP is Shaw Communications - Highest tier @ 100mbps down/5mbps up
Computers I have tried are:
Laptop: core2duo 2.6ghz
Server: dual socket XEON-Quadcore @ 2.8ghz - 32GB ram
Media Center: AMD 6400+
Same results on each computer, through router, and direct.