TCP/IP has reached the security limit imposed

Hi.

I have a Whats Up on WIndows XP to monitoring a lot of hosts over my LAN. The Whats UP has configured some alerts, sound, SMTP, pop up.
The application sends a lot of SMTP alerts. But in the Operating System I haven´t found any alert on event viewer.
My hosts are always on, but the application sometimes sow the objetcs down.

Only have this event in the event viewer.

Can you help me.

Event Type: Warning
Event Source: Tcpip
Event Category: None
Event ID: 4226
Date: 01-03-06
Time: 08:01:35 a.m.
User: N/A
Computer: WHATSUP
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 http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 00 00 00 00 01 00 54 00 ......T.
0008: 00 00 00 00 82 10 00 80 ....?..?
0010: 01 00 00 00 00 00 00 00 ........
0018: 00 00 00 00 00 00 00 00 ........
0020: 00 00 00 00 00 00 00 00 ........

 

You have run into a SP2 security feature. SP2 limits the number of TCP connection attempts per second to 10 (earlier it was unlimited) to reduce the threat of worms spreading.

 

Here is the article Arie is refering to:

http://www.speedguide.net/read_articles.php?id=1497