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  1. #1
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    TCP Optimizer WOW

    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.

    Last edited by queen; 01-27-06 at 02:01 PM. Reason: misinfo

  2. #2
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    Wow Part 2

    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.

    Last edited by queen; 09-24-05 at 01:20 PM.

  3. #3
    Administrator Philip's Avatar
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    So much for the "self-tunning TCP/IP stack", hehe. Glad to hear it worked well for you, and thanks for writing


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  4. #4
    Regular Member TeenInternetAddict's Avatar
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    Thumbs up

    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.
    Computer specs:

    Dell Dimension 2350 with a 1.7Ghz Intel Celeron Proccesor, Windows XP Home Edition, 80 Gig hard drive, 768Mb of DDRAM PC2100, CDRW and cdrom. Cox.net at 4Mbps down and 512Kbps up.

  5. #5
    Administrator Philip's Avatar
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    Most of those are already implemented in the TCP Optimizer. Thanks for sharing

  6. #6
    Greg Mierz
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    Thumbs up

    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

  7. #7
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    Where can I get TCP Optimizer 2.0.2 beta ?
    Thanks.
    Last edited by johndoe2; 11-14-05 at 06:26 PM.

  8. #8
    Moderator YeOldeStonecat's Avatar
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    Quote Originally Posted by johndoe2
    Where can I get TCP Optimizer 2.0.2 beta ?
    Thanks.
    See the second sticky at the top of the page?
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  9. #9
    Cabledude Avatar Fan purecomedy's Avatar
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    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.

  10. #10
    kalter
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    Exclamation

    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!!!

  11. #11
    wbdog26
    Guest
    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 !!!

  12. #12
    caspa
    Guest

    tcp optimizer

    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??
    Last edited by caspa; 01-16-06 at 02:12 AM.

  13. #13
    Member syknesss's Avatar
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    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
    Dell XPS Gen 5,P4 3.2 With HT,1 GB pc3200 DDR Ram 512x2,NVIDIA GeForce 6800 256MB,SB Audigy 2 z5,160GB HD,19 LCD.....

  14. #14
    Administrator Philip's Avatar
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    Quote Originally Posted by 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
    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.

  15. #15
    Kashik
    Guest
    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

  16. #16
    ricgal
    Guest
    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!

  17. #17
    SG Wizard Ashdaw's Avatar
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    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.

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  18. #18
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    Quote Originally Posted by queen View Post
    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.

    Hi: I just got upgraded from Road Runner. I did not notice much improvement at all......I don't know if there software is optimized for cable, but I noticed that the values were not even set.....Like the mtu was zero and others way out of sync.....I used the optimizer and now I am downloaded in the 3 to 5 mgb range.....Can this really be? Could this optimizer actually make that much improvement or do you think my cable company is just not giving me what I am paying for? I don't understand........Danny13350@twcny.rr.com

  19. #19
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    TCP Optimizer is the Lamb of God. My ISP advertises 6Mbs. Well, I ran TCP Optimizer and lo and behold:

  20. #20
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