Comcast new speed boost

Discussion in 'General Discussion' started by snwbdr, Jul 4, 2006.

  1. snwbdr

    snwbdr Network Guru Member

    Works great. I have the 6mb/s down and 384kb/s up now I get 16mb/s + down on large downloads. Just need to increase the upload speed. Now it looks like this 16000/384. My download speed almost tripled for free. Just don't understand why they don't increase the upload speed.
  2. YeOldeStonecat

    YeOldeStonecat Network Guru Member

    I love it. I know the online speed test sites such as Speakeasy aren't true measurements...but in my opinion...they do give you an idea of how quickly the "bursting" can be. And since Comcast cranked it up..some smaller downloads I've done...are already downloaded before you can blink. I don't know where the cutoff point is..where they throttle you back to you regular speeds. (by that..I mean the size of your download...what "cap" is it).

    Anyways...I've nudged over 90,000...but here's a screenie I took a week or so ago...

  3. snwbdr

    snwbdr Network Guru Member

    You must have photo shopped that one. Ha ha. That would make you 73mb/s. I think it is 16mb/s for a 8mb/s paid subscription and 12mb/s for a 6mb/s paid subscription. But basically it just takes the extra bandwidth from your node? So if everyone is online and it is busy you won't get much. You are just taking what is left over. I think that is right?

    But it does make you think about wireless if you were getting 73mb/s. I got a WRT54GS and I recall seeing that the actuall throughput with speedbooster is around the thirty mb/s. My router would not be able to handle it. It is probably a ways off but wonder if there will be a new generation of faster wireless products in the near future.
  4. YeOldeStonecat

    YeOldeStonecat Network Guru Member photo chopping, it is what it is. I know it's just a "burst" test...not really accurate. However.. before Powerboost...I'd faithfully benchmark at 6200 down from Speakeasy. Then...I noticed one day I went up to 25,000...and the next day...and the next day. A few fellow Comcast users in my state (CT) reported similar speed increases when I asked them to check it out in case it was a fluke on my end. Comcast hadn't announced it at that we were wondering what it was. day I went to test...after a few weeks of this...still at Speakeasy..and I shot up to 60,000...a few times in the 70,000 range...and once or twice in the 90,000 range.

    How they do it..." borrowing slack bandwidth from your node"..I don't know. I thought nodes were fed by T-3's...that certainly wouldn't have ample bandwidth to allow the bursting I they must be more. Probably a larger fract OC-3.

    Certainly the make/model router you have will impede what you burst at many home grade routers, especially older ones, can't handle much past 10, 15, 20 megs throughput. So many who have Comcast powerboost now probably can't see past 20...since their router will be a bottleneck.
  5. brownerd

    brownerd LI Guru Member

    What the HECK!?

    Here is what I get with a single cable modem connected directly to my PC:

    Last Result:
    Download Speed: 13307 kbps (1663.4 KB/sec transfer rate)
    Upload Speed: 953 kbps (119.1 KB/sec transfer rate)
    Last Result:
    Download Speed: 1657 kbps (207.1 KB/sec transfer rate)
    Upload Speed: 759 kbps (94.9 KB/sec transfer rate)

    My MTU size is set to 1500 and my firmare is Does anyone have any idea why the router is slowing things down so much?
  6. Toxic

    Toxic Administrator Staff Member

    ethernet cable faulty perhaps?
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