So finally after over a year of dealing with Time Warner, new modem, dozens of tech visits that never resolve why I am losing my internet connection so often I find the Event Viewer tool.
Listed is hundreds of this error: TCP/IP has reached the security limit imposed on the number of concurrent TCP connect attempts
Followed by: The IP address lease XX.XXX.XX.XXX for the Network Card with network address XXXXXXXXXXXX has been denied by the DHCP server XXX.XXX.XXX.X
This is timestamped during the time I get a resolving host timeouts and my whole internet goes out. Finally a lead to this nightmare I further find that typing Netstat -no in command prompt and finding the process with the aid of task manager that having a large number of open connections is my problem.
AshWebSv.exe PID 544 is the culprit! Had over Sixteen connections listed.
Using Service Pack 3 XP, Malwarebytes’ Anti-Malware, and obvious Avast!
Some other program is trying to connect (browser, downloader, etc.).
The TCP/IP limit is for Windows XP only if I’m not wrong. Problem is not on Vista.