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Win XP SP2 will limit your maximum connections

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70 replies to this topic

#1
nazz

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I saw this in a few places now.

This is the key to add to modify the maximum number of simultaneous connections

TcpNumConnections

Key: TcpipParameters
Value Type: REG_DWORD - Number
Valid Range: 0 - 0xfffffe
Default: 0xfffffe

Description: This parameter limits the maximum number of connections that TCP can have open simultaneously.

Can anyone confirm that changing this registry entry will fix the connection limitation on users windows who actually want to allow maximum connections. Do someone have a reg file which fixes this problem?


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#2
MCT

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ive found this,

http://warp2search.n...ticle&sid=19039
says its a possible fix, so it may work :)
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#3
Shark007

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Here's a reg file that sets it to the default used in XP SP1
16.7 million connections.

Shark007

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#4
BeenThereB4

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Can anyone confirm that changing this registry entry will fix the connection limitation on users windows who actually want to allow maximum connections. Do someone have a reg file which fixes this problem?


------- and the original question still stands unanswered! (Except for the reg file -- thanks for that.)
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#5
PaulD_ixbt

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TcpNumConnections will not help. :) I've posted some comments there.
http://bink.nu/Deskt...?ArticleID=2208

Default value for TcpNumConnections is 00FFFFFE for SP0, SP1 and SP2

#6
BeenThereB4

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At last a definitive answer! Thanks, I suspected that registry entry was of no value, but I was not able to get as far as you did.
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#7
bisco2k

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I heard that the tweak to remove this is something to do with editing the tcpip.sys file

#8
Jazkal

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Anyone know of anything else that might work? This is killing bittorrent downloads.

UPDATE:
I found this webpage that says they have a fix for it.

Fix?



UPDATE 2:

I just tried it, but it hasn't been set to work with build 2180 yet. :)
Did you RTFM?

#9
nolookingca

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that's seems to be only for the RCs.. :rolleyes:

EDIT: this might just be it: http://www.lvllord.de/index2.htm

However, the auto-patch page still doesn't say 2180, but the mainpage and the manual one does...

EDIT2: My bad. the patcher file does work with 2180. :)

EDIT3: any one got a hex-edited version I could use for the install CD?

Edited by nolookingca, 07 August 2004 - 12:54 PM.

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#10
Jazkal

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Sweet, it looks like it patched it, now I have to try it out. Thanks for the link.

After looking at this page, Here.

It seems this is only patching the connections to 50 total (up from the new limit of 10), but still not unlimited, like SP1 or before. :)
Did you RTFM?

#11
tbone587

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what exactly kind of problem is this feature presenting?

#12
Jazkal

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what exactly kind of problem is this feature presenting?

It's two reasons for me:

1) By what right does Microsoft have to set down limits on my internet use? I could see if they set some limited defaults for all the Joe Sixpacks out there that just do a base install of the OS, or keep the installed OS on their new PC they just bought. But why shouldn't we have the ability to unlock that? /end rant

2) If you use P2P programs, then you will be highly limited on your up/download speeds. Bittorrent uses 100 connections by default (I believe).
Did you RTFM?

#13
tbone587

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hmm.. im currently using sp2 2149 and havent really noticed a connection issue with bit torrent. although i just got a modded xbox and sometimes ill lose connection to the ftp.. not sure if thats cause of sp2 or not. so as of now, there is no way to remove this limitation"?

#14
Jazkal

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hmm.. im currently using sp2 2149 and havent really noticed a connection issue with bit torrent.  although i just got a modded xbox and sometimes ill lose connection to the ftp..  not sure if thats cause of sp2 or not.  so as of now, there is no way to remove this limitation"?

Look in your event viewer for Event ID 4226, that'll tell you if it's limiting your connections.

As far as a complete removal of this limit, no not yet. There is a patch avaliable that moves the limit from 10 to 50 connections (listed in a previous link).
Did you RTFM?

#15
tbone587

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I went to the event viewer and I see a bunch of warnings.. I guess Im way out of connections.... Arg I wish someone would crack this, but I guess ill run that patch or whatever was posted.

EDIT: One of the parts on the site it says is "Now restart your computer an press F8 short after the Bios is done and start in securemode (don't know the right translation!)." What exactly is secure mode? Are they just referring to safe mode?

#16
Jazkal

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Yes, they mean Safe Mode
Did you RTFM?

#17
captdilly

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Can somebody mirror the patcher so I can get it? The lvllord guy's site is down.

#18
Godzilla

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Here is a patched and modified TCPIP.SY_.

It may be that it is only for the german SP2.
I don´t know.
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#19
§naKeEye§

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will this affect ftp connections ?? if so ill only get 10 logins to an ftp right ?

#20
Chrysalis

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I am running sp2 and I know there is a new limit for remote desktop but I am not sure what you guys are on about. I am able to have more then 10 connections fine.

TCP 82.2.x.x:1268 207.46.x.x:1863 ESTABLISHED
TCP 82.2.x.x:1800 66.118.x.x:49865 ESTABLISHED
TCP 82.2.x.x:1805 213.112.x.x:5989 ESTABLISHED
TCP 82.2.x.x:1812 195.173.x.x:80 ESTABLISHED
TCP 82.2.x.x:3233 62.132.x.x:22 ESTABLISHED
TCP 82.2.x.x:3786 66.118.x.x:6667 ESTABLISHED
TCP 82.2.x.x:4023 66.118.x.x:42 ESTABLISHED
TCP 82.2.x.x:4024 62.132.x.x:42 ESTABLISHED
TCP 82.2.x.x:4025 69.64.x.x:22 ESTABLISHED
TCP 82.2.x.x:4220 213.205.x.x:8082 ESTABLISHED
TCP 82.2.x.x:5001 62.132.x.x:9999 ESTABLISHED
TCP 82.2.x.x:5002 66.118.x.x:27015 ESTABLISHED
TCP 82.2.x.x:5003 62.132.x.x:6662 ESTABLISHED
TCP 82.2.x.x:5004 82.96.x.x:6667 ESTABLISHED
TCP 82.2.x.x:5005 65.110.x.x:6667 ESTABLISHED

#21
Chrysalis

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ok I read the article and its connections per second not total connections its to stop things like viruses that do port scanning.

#22
visaversa

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Remote desktop connections, you get only ONE. If you want more simultanious go to this topic here

#23
Denney

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The limit is on the number of connections that can be made to other computer via ONE port on your PC.

For example, you can only have 10 connections at once going out of, say, port 1234.

In SP1 you could get as many connections as possible, now you can only have 10 connections per port at the same time. This has NOTHING to do with Remote Desktop.

#24
Alanoll

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The limit is on the number of connections that can be made to other computer via ONE port on your PC.

For example, you can only have 10 connections at once going out of, say, port 1234.

In SP1 you could get as many connections as possible, now you can only have 10 connections per port at the same time. This has NOTHING to do with Remote Desktop.

but it could limit P2P programs that use one port for all connections.
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#25
Denney

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@Alanoll: Exactally. That's why P2P programs like eMule will slow down. BitTorrent will also slow down unless you can configure it to use multiple ports.




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