One of the first things that users do when they get a broadband Internet connection is to visit so called speed tests on the Internet that measure the upload and download speed of a connection. This is great for bragging rights but also a good way to check if the advertised speeds are the real [...]
EventID 4226: TCP/IP has reached the security limit
Windows XP with Service Pack 2 and Windows Vista have both a TCP/IP connection limit that limits the half-open connections of the system. If that limit is reached a new entry in the Event Viewer is created stating “EventID 4226: TCP/IP has reached the security limit imposed on the number of concurrent TCP connect attempts.”.

