What can cause TCP/IP to drop packets without dropping the connection?

Question

I have a web-based application and a client, both written in Java. For what it\'s worth, the client and server are both on Windows. The client issues HTTP GETs via Apache HttpC

Answer 1

Could these computers have a virus/malware installed? Using wireshark installs winpcap (http://www.winpcap.org/) which may be overriding the changes the malware made (or the malware may simply detect it is being monitored and not attempt anything fishy).