TCP/IP Limitations of Desktop Versions of Windows

All desktop versions of Microsoft Windows, starting from Windows XP with Service Pack 2 (SP2), limit the number of half-open connections (SYN) to a maximum of 10 per second.

This can negatively affect the network monitoring functionality of Iotellect Network Manager.

Network monitoring process can be significantly slowed down. If the above limit is reached, the following record can be found in Windows Event Log:

Product: Windows Operating System
ID: 4226
Source: TCPIP
Symbolic Name: EVENT_TCPIP_TCP_CONNECT_LIMIT_REACHED
Message: TCP/IP has reached the security limit imposed on the number of concurrent (incomplete) TCP connect attempts

Therefore it is not recommended to install Iotellect Network Manager on desktop versions of Microsoft Windows (Windows XP, Windows Vista, Windows 7) for production use in large environments. Server versions of Windows (Windows 2000, 2003 Server, or 2008 Server) do not have this limitations, and should be used instead.

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