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Windows XP Crippling P2P Programs
blog.davidkaspar.com — Bit-torrent downloads seemingly slow? Windows XP SP2 limits half-open connections (SYN) to a maximum of 10 (the previous limit was over 65,000). This is supposed to slow down certain viruses because their spreading strategy is to try to connect to a high amount of random IP numbers. Read how to detect the symptoms and fix the problem.
mgoddard- 257 diggs
- digg it
- 7of7, on 10/12/2007, -3/+0Do something like this and then bitch when your computer sends out 65000 virus copies. Smart
- johnclark, on 10/12/2007, -0/+3I get a few of them with high BitTorrent loads. Before SP2 I never had the problem either.
- MikeEnIke, on 10/12/2007, -3/+0it all good...
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http://rewardhits.com/index.php?hit=3709 - ChrisB, on 10/12/2007, -0/+1Already knew this but hadn't got around to finding a way round it. digg++
- MacSawD, on 10/12/2007, -1/+0Before I read this, I hope it has to do with the Winsock errors I've been having with Azureus.
+digg for hope! - SteveFIS, on 10/12/2007, -1/+0I have seen this kind of articlles many times before.. old news.
- metafore, on 10/12/2007, -0/+1bravo. +digg
- schleppy, on 10/12/2007, -1/+0I did this a while ago while following one of those "speed up Azureus" how-to's. It really does work...
- blampen, on 10/12/2007, -1/+0ive known this for along time....
it really speeds up your bt downloads if you have sp2 - PatrickStar, on 10/12/2007, -1/+0nice, increase Virus Propagation.
- SteveFIS, on 10/12/2007, -0/+1http://digg.com/software/WinXP_Patch:_Raise_the_limit_(10_connections)_on_TCP_IP.
Similar Story - dolby, on 10/12/2007, -2/+0Thanks this great, i hate microsoft
- SparQy, on 10/12/2007, -1/+1dolby: stop using Windows then.
- mooninite, on 10/12/2007, -1/+0Old news, and this should not reduce any sort of performance through bittorrent. Don't allow viruses to spread if you are forced to use Windows XP.
- theantidote, on 10/12/2007, -1/+0This is crazy old. It's about as old as SP2 which is a year or so now right? Anyways old news, not dugg. But not reported either in case someone doesn't know this already ;)
- rookworm, on 10/12/2007, -1/+0This was really interesting... 15 months ago!! There is a regisitry fix availble, btw
- blairp, on 10/12/2007, -0/+1thanks alot for this, it is old news but ive never seen the patch before :)
- cquinnd, on 10/12/2007, -0/+2Old news yes, but incorrect as stated above. The limit is not on
"half-open connections" (whatever that is), but on connection attempts.
Bittorrent and P2P programs will make connection attempts to as many
seeds and peers in a tracker as it can, until it finds ones that it
can maintain a solid connection with. The connection limit reduces
the efficiency of BT in that regard, thus making your download stream
seem slower as it catches with all the peer connections.
You don't need to raise the limit back up to its previous default level,
but even raising it to a couple of hundred attempts can bring back
your P2P performance while still leaving the system fairly secure. - antispammer, on 10/12/2007, -0/+1I read about this a long time ago from here:
http://s90782290.onlinehome.us/?page_id=117 - BT-Wang, on 10/12/2007, -0/+1note: if you "fix" this, you can be TAKEN DOWN in a few minutes by a simple, highly parallel port scan.
10 is crazy low though. 200 is usually good enough for me. - tastypastry, on 10/12/2007, -1/+0So how can I increase my torrent files speed using Azureus and SP2?? thanks for the help.
- antispammer, on 10/12/2007, -0/+1"So how can I increase my torrent files speed using Azureus and SP2?? thanks for the help."
http://s90782290.onlinehome.us/?page_id=117 - TailGater, on 10/12/2007, -1/+0Sweet deal. Tnx!
- kevincw01, on 10/12/2007, -0/+1i think this "patch" is a virus. It was immediately deleted by my antivirus software when i unzipped it. beware.
- Jammerdelray, on 10/12/2007, -1/+0I don't beleive it.
- tastypastry, on 10/12/2007, -0/+1Thanks for the link AntiSpammer, worked out really well.
- SuperSloth, on 10/12/2007, -0/+1Hi, welcome to August 2004. OLD!
Note to users:
1. Open up Event Log.
2. Click on System log
3. Look for for "Warnings" with a source of "TCP/IP" and an ID of "4226".
** If you don't see any warnings, you're never hitting the limit. ** - ignun, on 10/12/2007, -0/+1Might be old but I hadn't seen it before...very useful as I have a ton of 4226 Warnings
- SuperSloth, on 10/12/2007, -0/+1Oh, and for the record, the TCP connection limit is number of connection attempts per second. Even if you're on a BT tracker with 10,000 peers and 20,000 seeds, you don't need more than 10 connections per second.
There is a second limit of 10 inbound connections that restricts WinXP to 10 concurrent inbound connections to prevent WinXP from being used as a network file, mail, or print server (functions that use the Server service). This connection limit has nothing to do with TCP connection attemtps and does not affect applications like BT.
http://support.microsoft.com/?scid=kb;en-us;314882 - mgoddard, on 10/12/2007, -0/+1rookworm> What registry fix? Please link. All my reasearch shows it requries a change in the TCPIP.SYS windows file.
- battybattybatt, on 10/12/2007, -0/+0People, stop saying things like "THere's a fix" UNLESS YOU HAVE THE ***** FIX.
- battybattybatt, on 10/12/2007, -0/+0I use XSetup Pro for ALL of this crap. Works great.
- Forse, on 10/12/2007, -0/+0Omg...this is so old it's not even funny anymore.
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