TCP Optimizer WOW

[queen]

I stopped tweaking my connection a long time ago after reading WinXP has a self tuning tcp/ip stack. I used to use Cablenut and the Cablenut .ccs generator to fine tune registry settings. Oh how my mind has changed (more below).

I haven't visited Speedguide in a while so I figured I would stop by the forums. Headed over to the tweaking forum and noticed a new TCP Optimizer 2.0.2 beta was out. Decided I would give it a shot for entertainment value.

I am on Comcast HSI 4000/384 kbps basic package (or so I thought). Running a speed test from dslreports.com/stest, downloading a 5.9 MB file usually results in an avg of 3500/300 kbps (which is good, aroun d 90% rated speed) speeds with windows default settings..

After running TCP Optimizer on optimal setting with slider on 4000 and running about 10 seperate tests from dslreports, my speeds have gone up to and over 4000/300 and a number of times reached over 5000 kbps (see below)! I had not known my bandwidth increased ISP side.

Here is a recent screenshot from a speed test after tweaking with the latest TCP Optimizer beta:



Absolutely incredible. I had rarely met 4000 kbps prior to running the optimizer and now I'm surprised if I don't get at least 4000 kbps (haven't had less since the 10 or so runs after tuning the stack). After using TCP Optimizer's optimal setting I'm receiving over 100% of rated speeds.

records: best runs since tweaking comcast 6000/384 (cache cleared, legitimate results):

5855/324 kbps - 731.8 KB/s (during non-peak hours)
5424/337 kbps - 678 KB/s (during peak hours!)

I'm now getting speeds like I'm supposed to as opposed to 2000kbps less with XP default values.

[queen]

I was getting a little suspicious again. There is no way on earth I can be getting an upwards of 2000 kbps faster download speeds on Windows XP Home SP2 just b/c of a tweaking TCP Optimizer program.

To ensure that the results were not some sort of a mistake I reran the test, this time resetting TCP stack values to windows defaults in TCP Optimizer and rebooting..

Here are teh results. 2869 / 314 with windows default settings.

I then set the values back to optimal for 4000 kbps in TCP Optimizer beta and here are the confirmed new results. 4546 / 337 with TCP Optimizer (with slider on optimal for 4000).

The speed increase is confirmed! I have just received a virtual bandwidth upgrade. Games just feel smoother, downloads are going a good 100 KB/s faster on average. This is just too amazing. Wow. Now I can save the 20USD/mnth on upgrading to Comcast pro and put it towards something else.

[Philip]

So much for the "self-tunning TCP/IP stack", hehe. Glad to hear it worked well for you, and thanks for writing


We try

[TeenInternetAddict]

I tried Windows' self tune stacking RWIN at 17520. That sure didn't work for me and made my connection slow and laggy. I decided to give TCP Optimizer a try after reading the reviews on Cnet. After I reboot the PC, my connection got faster and faster. Before I did the tweaks I got 2.2Mbps down and 515 Kbps up. Something closer to those numbers. My connection would lag and get kind of slow that I couldn't play games, surf pages, listen to audio and watch video clips online, etc. After I ran TCP Optimizer and did those tweaks, I have been getting 4207Kbps down and 517Kbps up. Not bad for a rated 4000/512 cable Internet
connection, the connection and computer doesn't lag anymore. I'm going to try the rest of the tweaks from this page and see what else I could improve on. But looks like I'm already tweaked out.

[Philip]

Most of those are already implemented in the TCP Optimizer. Thanks for sharing

[Greg Mierz]

I was having really slow downloads on my Dell Latitude laptop compared with my tower. Normally around 3.8-4.2 Mps (cable) speeds on the tower and 1.5MPS or less on the laptop. I downloaded and used TCIP optimiser and BINGO, the laptop is just as fast now. I was really frustrated on finding a way to fix the problem and the settings changed did it all. Great little program, it even improved the 2 non-laptops on my network some. Keep up the good work

[Deviate]

I have to be honest with you...I didn't think TCPOptimizer would really make THAT much of a difference for my connection. I just upgraded from 1.5Mbps dsl to 3.0Mbps. When I was first testing my new connection I was a little disappointed at the 2180 something result I was getting on the dslreports test. So I figured I'd try the program out. Nothing to lose...it let me back up my current settings before running it.

I ran it, rebooted and headed to dslreports to test my speed again. Holy mother of...well...my result was 2982. Thank you for this! When I tweaked my previous connection I had to do it all by hand searching for each registry key and experimenting. With TCPOptimizer it was just load the program, choose optimal settings and apply changes. Done.

[LitomoSilver]

If only I could optimize the school computers! I couldn't download the thing. Too bad. I'll download it when I can.

[johndoe2]

Where can I get TCP Optimizer 2.0.2 beta ?
Thanks.

[YeOldeStonecat]

Where can I get TCP Optimizer 2.0.2 beta ?
Thanks.

See the second sticky at the top of the page?

[purecomedy]

Wow, I'm surprised too that TCP/IP optimization is still such a big thing. I haven't bothered since XP seemed to be pretty fast. Maybe I'll give it another try.

One thing I have noticed is that more and more web pages are going to a more complex and data intensive structure....because of this, we can use all the speed we can get just to surf the web at a nicer speed.

[kalter]

Strange......I registered at this site a long time ago, but then spaced it off till yesterday.

Don't laugh, but I'm running an Earthlink ADSL line through a PIII-550 unit. I'm capped at 1500kbps down/700up.

I'd been using Cablenut for quite awhile, but with ever increasing surfing hangs/reboots over the last few months. Nothing I tried had any effect. Last week I even dared to flash the BIOS to no avail.

Yesterday I decided to delete all the Cablenut tweaks and revert to square 1. Amazingly, the rest of the web session went without a problem. Then I ran some speed tests from different locations around the country. I got wildly variable results in download speeds...anywhere from 400 to 1000 kbps.

I then googled for "broadband tweaks" and got TCPOptimizer among the leading returns...(hmmm...THAT sounds familiar......)

clicked to THIS site and my memory was refreshed. Downloaded TCPOptimizer and applied the basic optimal settings...then ran some more speed tests......

NOW I consistently get download speeds approaching 1300 kbps and upload speeds around 650 kbps!!! The main thing is that my connection and system aren't freezing, either.

The main difference I see between the TCPOptimizer and Cablenut OS/connection tweak sets is the RWIN values and the fact that Cablenut changes a LOT of values.

Anyway...so far so good......I'm going to continue experimenting with the TCPOpimizer (tonite I'm trying out the MaxMTU tweak)......I'll let yah know!!!

THANX!!!

[wbdog26]

I have been on rr.com/cox.net for 6years and it been getting slower and slower
all the time becouse of all the people on my node. So I decided to try TCP Optimizer and WOW is rite I havent seen speeds like this in a long time...
I love it becouse I'm allways sending and receving large files from people in my company.. and is great not to have to wait all day..

thank for the great program !!!

[caspa]

i'm kinda new to the tcp optimizer program and will probably be asking alot of questions. here is what i have done so far, i downloaded the sg_webtweak_2k and sguide_tweak_2k patches and installed them both to my registry, rebooted my pc and loaded up this site and man did it ever fly with ease. haven't quite figured out the optimizer proggie but gonna give it a whirl. thankx to who ever came up with the idea of all these tweaks and proggies, i am very gratefull that they are free to download and use with the way the world is with money these days. there are a few poor people still in this world, lol. THANKX SpeedGuide.net!! i also ran a speed test from this site and here are my results

Test complete. Your connection took 15.016 second(s) to download a 500KB test file.

Your current bandwidth is: 0.273 Mbps (273 kbps, 33 KBps).

haven't ran tcp optimizer program yet....... any idea's to get it faster??

[queen]

Basically TCP optimizer worked well for me because windows default RWIN value is poor for my connection. I have a high latency broadband connection. The default RWIN value is optimal for low latency networks. Using XP's default values I got 4Mb speeds and using a corrected RWIN value allowed for the full 6Mb. Some DSL users may not notice as big of a gain as myself simply because the default values are in a close approximation of what they should be.

[Philip]

Moved off-topic posts and discussion here: http://forums.speedguide.net/showthread.php?t=193553

Thank you for the positive comments about the Optimizer, we try

[koldchillah]

I haven't played with TCP Optimizer in a while.. Just loaded it up on my work PC..

My test results from speakeasy.net:

BEFORE TCP Optimizer: avg download = 23,058 kbps upload = 10,033 kbps
AFTER TCP Optimizer: avg download = 24,447 kbps upload = 12,591 kbps

Nice little boost! as if I really needed it..

[syknesss]

before=
Your TCP Window limits you to: 10278.4 kbps (1284.8 KBytes/s) @ 200ms
Your TCP Window limits you to: 4111.36 kbps (513.92 KBytes/s) @ 500ms

after=
Your TCP Window limits you to: 20556.8 kbps (2569.6 KBytes/s) @ 200ms
Your TCP Window limits you to: 8222.72 kbps (1027.84 KBytes/s) @ 500ms


this is on comcast 8meg/1meg and on a wireless laptop

[Philip]

before=
Your TCP Window limits you to: 10278.4 kbps (1284.8 KBytes/s) @ 200ms
Your TCP Window limits you to: 4111.36 kbps (513.92 KBytes/s) @ 500ms

after=
Your TCP Window limits you to: 20556.8 kbps (2569.6 KBytes/s) @ 200ms
Your TCP Window limits you to: 8222.72 kbps (1027.84 KBytes/s) @ 500ms


this is on comcast 8meg/1meg and on a wireless laptop

Actually, for others who might be reading this as well... The Analyzer is not a speed test, the lines quoted above are calculation of the maximum potential theoretical speed you can achieve using those settings.

[Kashik]

Just downloaded and spent 30 seconds doing nearly nothing with the optimizer. Before optimizing my connection was clocked at 5327kbps down, after optimizing it jumped to 6828kbps.

GREAT program... all i can say is wow.


now to customize

[a white rabbit]

..yeah, ok, WOW !!!..happy now ?

..practically, 0.09% bandwidth to 0.8/0.9 with a steady state dl/ul rate (according to task-manager). I've no idea whats happening to the other area users but already thu one crisis period, lunchtime and its holding good..

[Vibez1115]

I used the Speedtest.net test before and after.

I am in Salt Lake City

Before

Using a Server in Salt Lake City....4381 kb/s my highest was (5,500 kb/s)
Using a Server in San Francisco....3592 kb/s my highes was (6,235 kb/s)

After

Using a Server in Salt Lake City....8567 kb/s
Using a Server in San Francisco....11667 kb/s (Oh YEAH!)
Using a Server in Moscow....1391 kb/s (Better than what I was running a week ago.)

[ricgal]

Just a note for you guys on Comcast: One way Comcast "caps" the download and upload speeds is with the configuration file downloaded to the cable modem with every reset of the modem.

The modem is reset everytime the power is disconnected, and also from the network from time to time.

If you have only the standard broadband, no cable tv, your max rate will be 4400 kbps down and 384 kbps up. In most cases the difference in cost to add just the basic cable is about $5, and the download boosts to 6600 kbps. Just ask the sales guys to be sure.

The fast guys are at 8800 kbps down and 768 up.

Some areas of the country are testing higher speeds, either burst rate doubling on downloads or actual speeds of 16 mbps on the fastest.

Hope this helps!

[Ashdaw]

Might be a goo idea also to change the default setting in XP for multiple connections. I kept getting slow speeds and ZOne Alarm kept shutting itself off, I checked event 4226 and found that my system had exceeded the max allowable connections.

I had changed it before but it seems that often MS by stealth changes it back with a NEW update. I would suggest you check in your event viewer and see if 4226 has a yellow exclamation mark?

Try here and download the small programme (1kb) and run it. I set my connections to 80. Give it a try for yourself and see.

http://www.lvllord.de/ It doesn't have a virus either

[shoreke]

TCP Optimizer is the Lamb of God. My ISP advertises 6Mbs. Well, I ran TCP Optimizer and lo and behold:

[shoreke]

[shoreke]

[techbrew]

My Normal Speed at the time it was not tweak was only 256kbps but now check this out and you can say wooooooow dude.....

http://img241.imageshack.us/img241/513/myspeedgp2.jpg


more power to the site....



10 thumbs up from me

[neoghost]

I was having a sad day, my cable was giving me about 100KB/s download.. which is still much better than the 2.8KB/s I had with dialup.

I used MTU 1500 and vanburen's 10000 cable setting on XP and WHALA



Neoghost:
And yes I did the test on 2 other servers and all were in a consistant range.. nod:
I'm using a Zoom 5241 modem

[Steve-O]

Yeah, WOW!!! my thoughts exactly. Here's my experience: Prior to today, I had a 768K down/ 256K up (nominal) DSL connection. I upgraded today to 1.5M down/ 512K up. I ran a benchmark speedtest before the "upgrade" and got 665K down, which was about normal for this area and that connection. After work, I ran the speedtest and 929K down, very disappointing since I literally doubled the connection speed, allegedly. So being quite depressed, I went to my old buds at SG and downloaded the SG TCP Optimizer. I set my 1.5M connection speed on the slider, hit the optimize button and rebooted. I ran the Speakeasy speedtest and low and behold I had been tweaked to an earth-shaking 283K down!!! I said, oh well, no sweat, other guys have had this same problem and just restored Windows Defaults. So I chose the Restore Windows Default and rebooted. Hey, I was able to reclaim a substantial amount of my lost speed. Speakeasy now shows me at 310K down! I figured, oh well, at least I only hosed MY computer, so I went to my wife's and did the speed test, only to acquire an amazing 290K down! Yeah, I know I shot myself in the foot, I'm not blaming anyone else. I just want to know how to get my wimpy 929K back. Has the Optimizer hosed the router as well as my PC? Any assistance would be most appreciated. Again, I'm not flaming the program or the site, it just didn't work for me. And i was warned by other guys who had theirs hosed to proceed with caution. So ignoring all the caveats, I proceded anyway. Thanks in advance...

[Philip]

....
Again, I'm not flaming the program or the site, it just didn't work for me. And i was warned by other guys who had theirs hosed to proceed with caution. So ignoring all the caveats, I proceded anyway. Thanks in advance...

Please start a separate help thread so we can look at your settings in more detail. The Optimizer only changes registry settings on your PC, it does not affect your router or other computers on the network.
It would be helpful if you also include an Analyzer report in your thread.

[Steve-O]

Philip, thanks for your assistance. And I will indeed post another thread to see if we can eek out a couple more bps. But to close this one out, I just got home from work and did one more speed test (hoping the PC fairies had sprinkled some magic dust overnight) and I got 1189/432 which is real close to double what I had before upgrading. Why the registry didn't recover from the return to Windows Defaults, I don't know, but hey, I'm grinnin'. So I will take your advice and begin a new help thread with the info you requested. BTW, which forum would you suggest?