Before doing a recent fresh install of XP Pro SP3 I had done some tweak (don't remember the details) and it had tweaked many things including the mysterious TCP/IP connection limit. I have searched on google and have found mixed recommendations; some experts recommending not to mess with it while some recommending solutions (but have only been able to find it for Vista not XP). Since the fresh install (and all updates installed) I have been regularly getting the following in the event viewer Event Type: Warning Event Source: Tcpip Event Category: None Event ID: 4226 Date: 04-May-10 Time: 10:22:15 AM User: N/A Computer: mylaptop Description: TCP/IP has reached the security limit imposed on the number of concurrent TCP connect attempts. For more information, see Help and Support Center at .... I can say for sure that my internet connection is not giving me the download performance what I was getting prior to the new install... The download speed that I am not getting is simply frustrating. Can someone please help me tweak/remove the TCP/IP connection limit so that I can avail the full potential of what my bandwidth really has to offer. Ideal situation would be if you can pls recommend a tool which does all the hidden tweaks.