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ichiban
05-01-08, 07:08 AM
I'm having a Broadband connection(not PPOE) up to 1Mbps speed as advertised by my provider. It was hooked to a telephone where I can make calls and surf the net simultaenously.

My operating system is Windows XP SP2.

My computer performance is average or I say slow. I think it greatly affect my internet speed. I have AMD Sempron processor 3200+ (1.8GHz) and 256MB SDRAM.

I have approximately 15-20 programs installed and only MS office, Nero 8 and Adobe Acrobat are the heavy programs. When browsing the net, I usually open Mozilla Firefox, notepad, Internet download manager(IDM) and winamp only to optimize the memory.

I use Mozilla Firefox as my web browser.

Kaspersky Internet Security is my antivirus at the same time a web, mail and file antivirus as well as anti spam, privacy control and firewall. I think I'm safe when browsing the internet.

I haven't tweak my pc since but I planned to because when I download some large file/data(100MB up to 5GB) using IDM(internet download manager), I get an average speed of 140-160 KB/sec. Is this normal?
When I'm not downloading or browsing the net, I get around 800-950 KB/sec from an online bandwidth tester. Why the speed is not the same when downloading and idle?

I'm planning to buy Speedconnect XP from cbs-soft.com as an all-in-one, simple and user-friendly tool in tweaking pc for maximizing the internet speed.
Is this a good idea or manual tweaking is better?

I can say that my slow computer greatly affect the internet speed.

I provide you all the neccessary infos and sorry if I made it too long.

Here's the result:

« SpeedGuide.net TCP Analyzer Results »
Tested on: 05.01.2008 06:09
IP address: 124.6.xxx.xxx

TCP options string: 020405480103030001010402
MSS: 1352
MTU: 1392
TCP Window: 32768 (NOT multiple of MSS)
RWIN Scaling: 0
Unscaled RWIN : 32768
Reccomended RWINs: 64896, 129792, 259584, 519168
BDP limit (200ms): 1311kbps (164KBytes/s)
BDP limit (500ms): 524kbps (66KBytes/s)
MTU Discovery: ON
TTL: 40
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)


Any comments and suggestions is highly appreciated.

thanks
YeOldeStonecat
05-01-08, 08:16 AM
RAM is the first thing that jumps out on me. Minimum I recommend for light ==> average XP users is 512 megs. RAM is so cheap strive for 1 gig if you can.

Replace Adobe Acrobat (uninstall fully) with Foxit PDF.

Good to see Firefox....great to see Kaspersky...excellent product.

Naturally we recommend our own tweaking utility...the Speedguide TCP Optimizer. It's free also...very easy to use, run it....adjust the slide bar to your actual speed..follow the recommended settings.
Rollingstone
05-01-08, 11:15 AM
« SpeedGuide.net TCP Analyzer Results »
Tested on: 05.01.2008 06:09
IP address: 124.6.xxx.xxx

TCP options string: 020405480103030001010402
MSS: 1352
MTU: 1392
TCP Window: 32768 (NOT multiple of MSS)
RWIN Scaling: 0
Unscaled RWIN : 32768
Reccomended RWINs: 64896, 129792, 259584, 519168
BDP limit (200ms): 1311kbps (164KBytes/s)
BDP limit (500ms): 524kbps (66KBytes/s)
MTU Discovery: ON
TTL: 40
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

Try the following with TCP Optimizer:

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU 1500
TTL - 64
TCP Receive Window - leave blank
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
Windows Scaling - uncheck
Timestamps - uncheck

Advanced Settings tab:
Max Connections per Server - 10
Max Connections per 1.0 Server - 20
LocalPriority - 1
Host Priority - 1
DNSPriority - 1
NetbtPriority - 1
Lan Browsing speedup - optimized
QoS: NonBestEffortLimit - 0
ToS: DisableUserTOSSetting - 0
ToS: DefaultTOSValue - 80
MaxNegativeCacheTtl - 0
NetFailureCacheTime - 0
NegativeSOACache Time - 0
LAN Request Buffer Size - 32768
Then select "Apply Changes" and reboot to take effect

After reboot, post your new TCP Analyzer Report.
ichiban
05-03-08, 04:47 AM
Replace Adobe Acrobat (uninstall fully) with Foxit PDF.



Thanks for the tip. Im going to replace it soon.

Regarding my RAM size(256Mb), Im not planning any upgrade by now because my PC(HP brand) did perform well. Its only 3 yrs old but yet havent experience any crash or problems.. Im truly amazed.

My main purpose is to overwork and push my pc to the limit for peak performance while retaining its manufacturers spec.

I want to squeeze all of its memory available and working the processor to the max. I want to know its limit..

Any handy little advise will do.



After reboot, post your new TCP Analyzer Report.

Here's the new report:

« SpeedGuide.net TCP Analyzer Results »
Tested on: 05.03.2008 04:46
IP address: 222.127.xxx.xxx

TCP options string: 0204054801010402
MSS: 1352
MTU: 1392
TCP Window: 32768 (NOT multiple of MSS)
RWIN Scaling: 0
Unscaled RWIN : 32768
Reccomended RWINs: 64896, 129792, 259584, 519168
BDP limit (200ms): 1311kbps (164KBytes/s)
BDP limit (500ms): 524kbps (66KBytes/s)
MTU Discovery: ON
TTL: 41
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

I observed there was no change except in TTL: old is 40. new is 41
trogers
05-03-08, 07:32 AM
What operating system are you using?

What antivirus and software firewall are you using?
ichiban
05-03-08, 08:39 AM
Its has been mentioned already. Windows XP SP2 is the OS.

Kaspersky Internet Security is my antivirus at the same time firewall.

Cheers
Rollingstone
05-03-08, 09:44 AM
Kaspersky Internet Security

You're using KIS. This is why your TCP Window stuck at 32768. It's blocking your TCP Window.

Remember : JUST USE ANTIVIRUS in KIS to see if your TCP Window changes.
ichiban
05-03-08, 11:41 AM
You're using KIS. This is why your TCP Window stuck at 32768. It's blocking your TCP Window.

Remember : JUST USE ANTIVIRUS in KIS to see if your TCP Window changes.

I disabled temporarily the KIS firewall and other applications except its antivirus
but still it remains the same.

Here's the new report:

« SpeedGuide.net TCP Analyzer Results »
Tested on: 05.03.2008 11:36
IP address: 203.177.xxx.xxx

TCP options string: 0204054801010402
MSS: 1352
MTU: 1392
TCP Window: 32768 (NOT multiple of MSS)
RWIN Scaling: 0
Unscaled RWIN : 32768
Reccomended RWINs: 64896, 129792, 259584, 519168
BDP limit (200ms): 1311kbps (164KBytes/s)
BDP limit (500ms): 524kbps (66KBytes/s)
MTU Discovery: ON
TTL: 42
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)
trogers
05-03-08, 03:17 PM
I suspect it is the combination of KIS with the recent Microsoft patch KB941644 that is limiting adjustments to your TCP Window:

http://www.microsoft.com/downloads/details.aspx?FamilyID=0a766242-2342-4fa0-9b66-8953c54a2211&displaylang=en

Try going to Control Panel and Add/Remove Programs to uninstall this patch. Reboot comp and run TCP Optimizer and see if your TCP Window will change.

If needed, you can download and install this patch again at the above link.