RE: Slow DSL Connection SBS2003
- From: v-yanniw@xxxxxxxxxxxxxxxxxxxx ("Jenny wu [MSFT]")
- Date: Fri, 13 Jan 2006 10:49:44 GMT
Hi Anthony,
It is nice to work with again!
>From your description, I understand the issue to be: the download speed of
DSL modem does not reach the expected speed. If I am off base, please don't
hesitate to let me know.
In your scenario, the physic network topology as follows:
LAN ---server box (ISA)--- SOHO firewall/Router --- DSL modem --- internet
When client computer try to down files from internet, the request is
delivered to ISA, NAT process and NAT process again from ISA to SOHO
firewall/Router, then the request is delivered to internet. When the files
are downloaded from internet, they are also delivered to SOHO firewall, ISA
then client computers by package and unpackaged. The process will decrease
the speed as we known.
Let's perform some test to isolate the problem:
1. Please disable the internal network adapter, try to download some files
from internet to the server box, what is the download speed?
2. Also please try to connect one laptop directly to down the same files,
what is the speed?
3. Also please disable the internal network adapter, and the web proxy set
in IE (IE - Tools -> Internet options -> connections -> LAN Setting ->
Proxy Server, please uncheck "use a web proxy for your LAN.."), try to
download the same files, what is the speed?
4. Please try to log on one client computer, please ensure other computers
do not transfer information this time. Then please try to download the same
files, what is the speed?
What is more, please let me know how you get the internet speed? If
possible, please catch some screen shots for analyze.
I appreciate your time! I am happy to be of assistance to you and look
forward to your reply!
Have a nice day!
Sincerely,
Jenny Wu
Microsoft CSS Online Newsgroup Support
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>Thread-Topic: Slow DSL Connection SBS2003
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>Subject: RE: Slow DSL Connection SBS2003
>Date: Wed, 11 Jan 2006 13:28:02 -0800
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>I've seen this before... Can you measure your speed directly from the F/W
to
>a workstation? As well, why not just configure the network to hang off the
>F/W, with the server on the same switch as the network, rather than
layering
>your server in between. The only reason I would have your setup is if I
was
>using the server as a proxy.
>
>"Anthony Smith" wrote:
>
>> Good Afternoon,
>> Happy New Year Everyone!
>>
>> We're running SBS2003 with the latest services paks to the best of my
>> knowledge. We just switched from VOIP back to DSL. We have 2 nics. One
for
>> internal network, one for the external (DSL) network. The external is
behind
>> a SOHO firewall. The DSL connection goes through the firewall, than it
goes
>> to the SBS2003 server. I've run the ICEW wizard to re-configure the
>> connection and it works but it isn't getting the 3MB down as promised.
It
>> only gets about 1MB down. I got a laptop and connected it directly to
the
>> DSL modem, bypassing the SOHO firewall and I got almost 5 mb down. So
there
>> must be something with my server or firewall that won't allow me to get
more
>> than 1 mb down. Any ideas? Any registry hacks I need to do to allow more
>> than 1 mb down on the server?
>>
>> Sincerely,
>> Anthony Smith
>> In God We Trust!
>>
>>
>>
>
.
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