Using Microsoft NetMon to troubleshoot application network communications

Alex Mags
Recently showed NetMon to a developer for troubleshooting IntelliJ. The Java development environment app was freezing and we found it was attempting to go direct to Maven central repository instead of our internal repository or out via the web proxy. NetMon is a network capture tool. Rather than showing you raw data like wireshark, it breaks down the traffic into “conversations” per process (and process ID). This makes it easier to see the forest for the trees, or the tree you’re interested in instead of the whole forest.