Re: SBS 2003 slowing internet by almost 50%
- From: Mike Edgewood <itmags@xxxxxxxxx>
- Date: 11 May 2007 13:17:33 -0700
Resolved.
Nvidia nForce4 nic in server machine looks to be the culprit.
Problem: Autonegotiation
Set to "Force 100 Full" and we perked right back up to full throttle.
Someone mentioned this and I attempted Force 10, which didn't seem to
work. This, however, seems to have done the trick. What an elusive
problem. My thanks to Cris for the suggestion. I'm sorry I didn't
experiment with this more exhaustively before.
On a side note: One other workstation was losing connections to the
server from time to time for no reason. That workstation also has an
Nvidia nForce4 nic and I have now set it to "Force 100 Full" as well.
Hopefully in discovering this, I have solved two problems.
Thanks for the assistance.
On May 9, 4:39 pm, Mike Edgewood <itm...@xxxxxxxxx> wrote:
Just as mysteriously as it perked back up, it has choked itself back
down again. Well, at least I had about a week or better of good
connectivity. Back to troubleshooting this one.
I did unplug a workstation from the switch and plug it directly into
the DSL modem just now and saw full rated speed, so it is definitely
the server slowing things down.
On May 3, 9:03 am, Mike Edgewood <itm...@xxxxxxxxx> wrote:
Firewall client installed on the workstations. Once I noticed the
slow down, I ran various speed tests, sometimes upwards of 10/day. I
was ticked. The results were never exactly the same, but they were
all within the same range of speeds. From 1.5mpbs to 2.8mpbs
depending on the site.
I also stopped "firewall" on server and told firefox on server not to
use proxy. No change in speed test. It was after I upgraded Firefox
from 1.6 to 2.x and ran a speed test that the results were in the 4.6
to 5.1 range. This includes speed tests run from workstations as
well.
I don't know if one of the fixes, tweaks, patches did the trick, but
if it did, it took over 24hrs and several reboots to decided to work.
It seemed to put Inet traffic back at full speed immediately after
upgrading the Firefox program on the server. Although I don't know
why this would make an impact on the internet traffic on the SBS
box.
Firefox is a browser program as is Internet Explorer and I like
Firefox better. I feel a little safer running Firefox on the server
than I do IE.
On Apr 28, 4:12 am, "POP" <iknowyouw...@xxxxxxxx> wrote:
Just to pop in here... ISA is the 'culprit' HOWEVER, it doesn't seem to
really affect performance except for those speed tests. I don't know the
reason but think its the way ISA handles the requests.
I remember posting a while back as a client has a laptop hooked up to the
router for direct internet access as a backup, hardly used but they are a
trading company in stocks and shares and internet is paramount ( 3 x ADSL
lines too)
Client pc behind ISA speed test was much slower than laptop (only seen on
ISA installs, standard was fine) however download a file from big supplier
i.e Microsoft and speeds were same. It may be something in ISA distributing
/ sharing.
As SG says, run the test again say 3 mins and get diff results..
It must be the way a speed test works (don't know the technical aspect) LAN
and Internet speeds are very quick and any millisecond delay will result in
different speeds. Something connected direct to internet box will get a
different speed than a client pc behind a server on a lan. Try again in an
internet connection scenario. Initial pc gets one result, make it a ICS
machine it will be slower than original speed and machine getting IP from
ICS machine will be even slower.
Putting a machine direct to internet box is not a same comparison. Ensure
all pcs are turned off and try again from server, does this give different
results ?
Tell the other company to put a mini hub between laptop and internet box,
does that give different results ?
Interesting that Firefox gives different results. Was it a firewall client ?
Turn off client firewall make it just a nat client does that give different
result.
I don't think it has anything to do with recent SP as I had this question
from clients at least 6 months back.
Overall, mathematically, its not a like for like comparison so the results
cannot be compared.
"Cris Hanna [SBS-MVP]" <crisnospamha...@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
wrote in messagenews:15E7FE5C-6BB8-4A3B-B0D5-F0CA5F64A5E3@xxxxxxxxxxxxxxxx
I agree with SG Firefox is not a wise choice on the server
Do you have the firewall client installed on the workstations?
--
Cris Hanna [SBS-MVP]
------------------------------
Please do not contact me directly, only respond in the Newsgroups
MVPs do not work for Microsoft
------------------------------
Send via Windows Mail on Vista Ultimate connected to SBS 2003 R2
"Mike Edgewood" <itm...@xxxxxxxxx> wrote in message
news:1177709096.022069.88740@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
According to that program, there are a myriad of KB's installed under
"SP2" under Windows Server 2003 staring on 9/15/05 up to 1/13/07,
which then lists SP3 and the KB's start again, of which there are 6.
[At the top of the page under OS under WSSE, SBS Restricted Service
Pack 1 (build 3790).]
I upgraded FireFox on the server machine just now and ran a speed
test. Speed test was a full speed this time. Ran speed test from
client with same result, full speed.
Perhaps one of the methods applied previously did not apply itself
until now. I don't know. I'm confused now. I can't see how
upgrading a browser on the server could affect the speed of the
internet in this fashion or how it would affect the access speed of
the workstations.
I also cleared the ISA cache and refreshed the dns cache yesterday.
Forgot to mention that.
Well, all I can say is something took and it is up to speed now.
I definitely appreciate the help you have given me. Thank you.
On Apr 27, 3:41 pm, "Cris Hanna [SBS-MVP]"
<crisnospamha...@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
Windows Server SP2 just came out..
http://www.belarc.com/free_download.html
go here, run this on the server and it will tell you what service packs
you
have and what you are missing
IF SP2 for Windows Server is not installed....DON'T
--
Cris Hanna [SBS-MVP]
-------------------------------------------------
Microsoft MVPs
Independent Experts (MVPs do not work for MS)
Real World Answers
---------------------------------------------------------
Please do not contact me directly regarding issues
"Mike Edgewood" <itm...@xxxxxxxxx> wrote in message
news:1177705189.058401.83180@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
To the best of my knowledge, we should have both. I don't know how I
could confirm this, however.
On Apr 27, 2:57 pm, "Cris Hanna [SBS-MVP]"
<crisnospamha...@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
Have you installed either
Windows Service Pack 2
OR
ISA 2004 SP2?
Does External NIC connect directly to the DSL Modem?
--
Cris Hanna [SBS-MVP]
-------------------------------------------------
Microsoft MVPs
Independent Experts (MVPs do not work for MS)
Real World Answers
---------------------------------------------------------
Please do not contact me directly regarding issues
"Mike Edgewood" <itm...@xxxxxxxxx> wrote in message
news:1177703191.605186.258900@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
NICs are built into the ASUS motherboard. Changed WAN nick to
force
10mb full duplex. No change in speed.
Although the DSL is new to this office, it was working for a couple
of
weeks and then about two weeks ago we started seeing the problems
on
the workstation. I immediately assumed phone company. The phone
company ran a lot of tests on their end and then came to the office
to
test and they showed it working as fast as offered inside this
office. We are across the street from the CO so we actually get
the
full 5mb.
Not only are the workstations at about 50% on the speed test, but
running speed test on the server shows it is the same slow speed as
the workstations.
Could this be a new service pack or update or upgrade doing this?
Windows IP Configuration
Host Name . . . . . . . . . . . . : server2
Primary Dns Suffix . . . . . . . : box2.local
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : Yes
DNS Suffix Search List. . . . . . : box2.local
Ethernet adapter Server Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Marvell Yukon
88E8001/8003/8010
PCI Gigabit Ethernet Controller
Physical Address. . . . . . . . . : 00-13-D4-58-F7-BA
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.0.2.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : 10.0.2.1
Primary WINS Server . . . . . . . : 10.0.2.1
Ethernet adapter Network Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : NVIDIA nForce Networking
Controller
Physical Address. . . . . . . . . : 00-13-D4-58-EF-82
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.254.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.254.254
DNS Servers . . . . . . . . . . . : 10.0.0.1
NetBIOS over Tcpip. . . . . . . . : Disabled
On Apr 27, 2:07 pm, "Cris Hanna [SBS-MVP]"
<crisnospamha...@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
...
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