A free C++ BitTorrent/HTTP/FTP Download Client



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tcp_ip_patch [2010/04/26 02:56]
lucy created
tcp_ip_patch [2015/08/15 04:21]
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-===== TCP/IP patch ===== 
-Windows versions beginning with XP SP2 limits opening TCP connection attempts to 10 at any given moment. If there are more concurrent TCP connection attempts, Windows generates a warning: 
-[[http://​www.microsoft.com/​products/​ee/​transform.aspx?​ProdName=Windows%20Operating%20System&​ProdVer=5.1.2600.2180&​EvtID=4226&​EvtSrc=Tcpip&​FileVer=5.1.2600.2180&​FileName=xpsp2res.dll&​EvtType=Warning&​LCID=|EventID 4226: TCP/IP has reached the security limit imposed on the number of concurrent TCP connect attempts.]] 
-Since XP SP2 there are only 10 concurrent TCP connection attempts possible. This does not limit the total number of connection attempts, just the amount that can be opened concurrently,​ previous versions of windows did not have this limit. 
-Event 4226 warnings from normal use of BitComet does not indicate a problem, and is to be expected. 
-(A connection attempt is a query to a computer, if it accepts the TCP connection or not. If the target computer does not accept the connection, it will wait a few seconds, until a timeout occurs and the connection attempt will be canceled.) 
-BitComet 0.55 and above has been modified so that it can work within this limit without any configuration changes. 
-With normal usage of BitComet, the target number of peers are obtained in less then a minute with or without the TCP limit in place, so it is only recommended that you install the patch **only if you know exactly what you are doing**, and have a specific reason for wanting to do so. 
-If you choose to apply that patch, you will be able to change the Max Simultaneous TCP connection attempts in the BitComet Options - Advanced - TCP/IP Limit. ​ 
-[[start|Main Index]] 
tcp_ip_patch.txt · Last modified: 2015/08/15 04:21 (external edit)
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