There was a download of IPSentry 5.76 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. IPSentry relates to Internet & Network Tools. This program was originally produced by RGE Inc. The most popular versions of the program 5.7, 5.6 and 5.5. IPSentry.exe or IPSGrapher.exe are the common file names to indicate the IPSentry installer.
From the developer:
IPSentry performs constant monitoring of your network infrastructure and provides real-time notification alerts should there be a detected threshold exception, failure, or other defined problem. With IPSentry, you will be notified of network issues for immediate correction thereby substantially reducing down time.
You may want to check out more software, such as IPSentry® IPSX or IPSentry Network Monitoring Suite, which might be similar to IPSentry.