SB4100, Comcast Gold Service, and Linksys BEFSR11 router

SB4100, Comcast Gold Service, and Linksys BEFSR11 router

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Subject Author Date
SB4100, Comcast Gold Service, and Linksys BEFSR11 router riggor9999 02-20-2005
Posted by riggor9999 on February 20, 2005, 11:17 am
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All...I thought I would share a few things...

1) I upgraded to Comcast Gold - but I was not getting the download speeds
of 6000...more like 3000 to 4000. The uploads were avg 730 up. It was
suggested that a tech come out to measure signal strength. So I scheduled a
tech to come out to check my signals...in the meanwhile...I was out of town
all last week. When I came back - my speeds were around 5000 on avg. The
tech came out this morning and said they had been working on the nodes last
week and that may explain my speed increase.

2) Originally - when I had HSI setup - they installed an amplifier in my
house. The tech noticed it and said that since Comcast has done all the
field upgrades - the amp is no longer needed for HSI, and may actually hurt
service. He said it's ok for TV - but not needed for HSI. He bypassed the
amp for the cable modem service - and yes - speeds jumped up to 5500 on
average.

3) He was ok with me having a router - but to be clean we bypassed the
router and went PC to Cable Modem for all the work and testing. When we put
the Linksys BEFSR11 ver 1.1 (firmware 1.46.02, Aug 03 2004) router back into
the mix, the speeds seem to slow down a bit - and there is clear latency
issue - where it is now taking longer to load and refresh pages. Now I am
avg 5400 - with a clear delay in loading and refreshing pages compared to
not having the router in the mix.

Has anyone else seen a diff between with router and without router?

--


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Posted by Richardson on February 20, 2005, 11:29 am
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On 2/20/05 11:17 AM, in article L9-dnetimtGXJYXfRVn-1Q@comcast.com,

> All...I thought I would share a few things...
>
> 1) I upgraded to Comcast Gold - but I was not getting the download speeds
> of 6000...more like 3000 to 4000. The uploads were avg 730 up. It was
> suggested that a tech come out to measure signal strength. So I scheduled a
> tech to come out to check my signals...in the meanwhile...I was out of town
> all last week. When I came back - my speeds were around 5000 on avg. The
> tech came out this morning and said they had been working on the nodes last
> week and that may explain my speed increase.
>
> 2) Originally - when I had HSI setup - they installed an amplifier in my
> house. The tech noticed it and said that since Comcast has done all the
> field upgrades - the amp is no longer needed for HSI, and may actually hurt
> service. He said it's ok for TV - but not needed for HSI. He bypassed the
> amp for the cable modem service - and yes - speeds jumped up to 5500 on
> average.
>
> 3) He was ok with me having a router - but to be clean we bypassed the
> router and went PC to Cable Modem for all the work and testing. When we put
> the Linksys BEFSR11 ver 1.1 (firmware 1.46.02, Aug 03 2004) router back into
> the mix, the speeds seem to slow down a bit - and there is clear latency
> issue - where it is now taking longer to load and refresh pages. Now I am
> avg 5400 - with a clear delay in loading and refreshing pages compared to
> not having the router in the mix.
>
> Has anyone else seen a diff between with router and without router?

Well...I run a Netgear router in my config on Gold tier, and speeds are
never faster when I connect the modem directly to the computer; so I don't
think that a router necessarily causes latency or slower download speeds. In
my view the inability to achieve the 6mb advertised download speed is (at
least in my case) a Comcast problem...especially because my pings to
comcast.net vary tremendously...sometimes averaging 35 ms and other times
150-250 ms.



Posted by Giles Harney on February 20, 2005, 11:55 am
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> Well...I run a Netgear router in my config on Gold tier, and speeds are
> never faster when I connect the modem directly to the computer; so I don't
> think that a router necessarily causes latency or slower download speeds.
In
> my view the inability to achieve the 6mb advertised download speed is (at
> least in my case) a Comcast problem...

based on the original poster's description it seems pretty clear to me that
it is not a comcast problem.
Why? Because when he had the cable modem connected directly to his computer
his speeds were around "5500".







Posted by Richardson on February 20, 2005, 12:35 pm
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On 2/20/05 11:55 AM, in article w6OdnQZKia-oIoXfRVn-sQ@comcast.com, "Giles

>
>
>> Well...I run a Netgear router in my config on Gold tier, and speeds are
>> never faster when I connect the modem directly to the computer; so I don't
>> think that a router necessarily causes latency or slower download speeds.
> In
>> my view the inability to achieve the 6mb advertised download speed is (at
>> least in my case) a Comcast problem...
>
> based on the original poster's description it seems pretty clear to me that
> it is not a comcast problem.
> Why? Because when he had the cable modem connected directly to his computer
> his speeds were around "5500".
>
>
>
>
>
Yes, but he asked whether anyone was seeing differences in speed with and
without the router in the mix. My post indicates that a router is not
necessarily any kind of limiting factor for download speed (although it
might be in his case).



Posted by Rick Merrill on February 20, 2005, 2:32 pm
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Richardson wrote:
> On 2/20/05 11:55 AM, in article w6OdnQZKia-oIoXfRVn-sQ@comcast.com, "Giles
>
>
>>
>>
>>>Well...I run a Netgear router in my config on Gold tier, and speeds are
>>>never faster when I connect the modem directly to the computer; so I don't
>>>think that a router necessarily causes latency or slower download speeds.
>>
>>In
>>
>>>my view the inability to achieve the 6mb advertised download speed is (at
>>>least in my case) a Comcast problem...
>>
>>based on the original poster's description it seems pretty clear to me that
>>it is not a comcast problem.
>>Why? Because when he had the cable modem connected directly to his computer
>>his speeds were around "5500".
>>
>>
>>
>>
>>
>
> Yes, but he asked whether anyone was seeing differences in speed with and
> without the router in the mix. My post indicates that a router is not
> necessarily any kind of limiting factor for download speed (although it
> might be in his case).
>

Speed has to depend on what server you are using, packet size, and more.
When you talk about performance metrics, ID the way the metric is done.
c.f. http://compnetworking.about.com/od/bittorrent/qt/bittorrentports.htm
which talks about speed optimization behind a router.


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