# Anomaly Detection | ManageEngine OpManager ## Anomaly detection in OpManager Discover how OpManager’s anomaly detection captures and visualizes performance deviations across your network for clear insights and analysis, enabling predictive IT monitoring and better network downtime prevention. ## Identify device anomalies before they impact your business Networks generate massive amounts of performance data every minute. While threshold-based alerts are useful, they often miss the early signs of trouble—sudden spikes in latency, unexpected packet loss, or irregular usage patterns—that don't immediately breach limits. These subtle deviations, called anomalies, are often the precursors to catastrophic downtime. OpManager’s anomaly detection feature addresses this gap by continuously analyzing device and [group](https://www.manageengine.com/network-monitoring/help/grouping.html) performance data, identifying deviations in real time, and classifying them by their severity. This proactive approach enables IT teams to catch issues early, troubleshoot faster, and ensure uninterrupted service delivery. ## What is anomaly detection in network monitoring? [Anomaly detection](https://www.manageengine.com/network-monitoring/help/anomaly-detection.html) in OpManager records behavioral shifts by refreshing anomaly data every hour, independent of the polling interval. This predictive IT monitoring means even short-lived spikes or irregularities are recorded with timestamps, giving admins complete visibility into when and where issues begin. ![Anomalies Summary](https://www.manageengine.com/eu/network-monitoring/help/images/anomaly-detection.gif) Unlike manual configurations, the anomaly detection feature automatically adapts to changes in device monitors, such as adding or removing metrics, ensuring accuracy without extra effort. With this, IT teams gain a reliable, always updated perspective on performance health. With AI/ML-based advanced anomaly detection, you can: - Detect sudden performance deviations across devices and groups. - Pinpoint the time of occurrence with detailed historical context. - Capture anomalies even when they are short-lived. ## Unified visibility across your network At the device level, anomalies are logged with a detailed history for locating the root cause. At the group level, they are aggregated to help IT teams understand the wider impact on business-critical services. From the *Anomaly Summary* page under the **Alarms** tab, users can deploy multiple filters such as the business view and category to filter the data. The exclusive anomaly dashboard delivers a clear, visual summary of anomalies across your infrastructure. By categorizing deviations as Attention, Trouble, or Critical, it helps you prioritize responses instantly. From recent anomalies with expected versus actual values to long-term trends and the top devices or groups affected, the dashboard turns complex data into actionable insights. Using the export to PDF option, you can generate the data as a report from the dashboard. Also, you can create custom dashboards using the anomaly widgets. ![Anomalies Dashboard](https://www.manageengine.com/eu/network-monitoring/help/images/anomaly-detection-3.png) The anomaly dashboard provides: - Real-time classification of anomalies by their severity. - A consolidated view of the overall anomalies, trends, and top devices and groups with anomalies. ## Proactive monitoring right from day 1 Unlike other monitoring tools that require configuration or tuning, anomaly detection in OpManager is enabled out of the box. From the moment deployment is complete, the tool begins tracking anomalies automatically, giving you proactive insights without any setup. This means faster adoption, quicker troubleshooting, and less downtime risk. ## Prevent downtime with predictive monitoring Downtime doesn't happen suddenly; it builds through patterns that go unnoticed until it's too late. With AI/ML-based anomaly detection, OpManager ensures those patterns are visible, actionable, and resolved before they affect end users. By combining threshold monitoring with continuous anomaly tracking, OpManager equips IT teams to move from reactive troubleshooting to proactive performance management. Try OpManager's free, [30-day trial](https://www.manageengine.com/in/network-monitoring/download-free.html?anomaly_detection_feature) and discover how the early detection of anomalies can help you optimize your network performance. ## Case Studies - OpManager ### Hinduja Global Solutions saves $3 million a year using OpManager **Industry:** IT Hinduja Global Solutions (HGS) is an Indian business process management (BPM) organization headquartered in Bangalore and part of the Hinduja Group. HGS combines technology-powered automation, analytics, and digital services focusing on back office proces [Learn more](https://www.manageengine.com/network-monitoring/hinduja-global-services-cs.html?anomaly_detection__feature) ### USA-Based Healthcare Organization Monitor's Network Devices Using OpManager and Network Configuration Manager **Industry:** Healthcare One of the largest radiology groups in the nation, with a team of more than 200 board-certified radiologists, provides more than 50 hospital and specialty clinic partners with on-site radiology coverage and interpretations. [Learn more](https://www.manageengine.com/network-monitoring/usa-healthcare-network-monitoring-configuration-management-cs.html?anomaly_detection__feature) ### Netherlands-based real estate data company avoids system downtime using OpManager and Firewall Analyzer **Industry:** Real Estate Vabi is a Netherlands-based company that provides "real estate data in order, for everyone." Since 1972, the company has focused on making software that calculates the performance of buildings. It has since then widened its scope from making calculations [Learn more](https://www.manageengine.com/network-monitoring/netherlands-vabi-cs.html?anomaly_detection__feature) ### Global news and media company **Industry:** Telecommunication and Media Bonita uses OpManager to monitor their network infrastructure and clear bottlenecks [Learn more](https://www.manageengine.com/network-monitoring/business-cs.html?anomaly_detection__feature) ### Bonita **Industry:** Businesses and Services Bonita uses OpManager to monitor their network infrastructure and clear bottlenecks [Learn more](https://www.manageengine.com/network-monitoring/bonita-cs.html?anomaly_detection__feature) ### Thorp Reed & Armstrong **Industry :** Government Randy S. Hollaway from Thorp Reed & Armstrong relies on OpManager for prompt alerts and reports [Learn more](https://www.manageengine.com/network-monitoring/opmanager-thorp-reed-cs.html?anomaly_detection__feature) ## Awards & Honors - [Recognized as a May 2019 Gartner Peer Insights Customers' Choice for Network Performance Monitoring and Diagnostics Software](https://www.manageengine.com/network-monitoring/gartner-customer-choice-may-2019.html?anomaly_detection__feature) - [Recognised as an April 2019 Gartner Peer Insights Customers' Choice for IT Infrastructure Monitoring Tools.](https://blogs.manageengine.com/network/opmanager/2019/05/01/manageengine-named-an-april-2019-gartner-peer-insights-customers-choice-for-it-infrastructure-monitoring-tools.html?anomaly_detection__feature) - [Network Management and Monitor Vendor of the Year 2018, 2019](https://blogs.manageengine.com/network/opmanager/2019/04/18/manageengine-wins-at-future-network-awards-for-the-third-time.html?anomaly_detection__feature) - [Entered the 2019 Gartner NPMD Magic Quadrant.](https://www.manageengine.com/network-monitoring/gartner-magic-quadrant-for-npmd.html?anomaly_detection__feature) - [Ranked #2 in the Infotech Research Software Reviews Data Quadrant 2018.](https://www.manageengine.com/network-monitoring/info-tech-data-quadrant.html?anomaly_detection__feature) [more...](https://www.manageengine.com/network-monitoring/network-software-review.html?anomaly_detection_feature) ## Related Products - [Network Monitoring](https://www.manageengine.com/network-monitoring/?relPrd) - [Bandwidth Monitoring & Traffic Analysis](https://www.manageengine.com/products/netflow/?relPrd) - [Network Configuration Management](https://www.manageengine.com/network-configuration-manager/?relPrd) - [Switch Port & IP Address Management](https://www.manageengine.com/products/oputils/?relPrd) - [Firewall Management](https://www.manageengine.com/products/firewall/?relPrd) - [Network Monitoring Software for MSPs](https://www.manageengine.com/network-monitoring-msp/?relPrd) - [IT Operations Management](https://www.manageengine.com/it-operations-management/) - [Application Performance Monitoring](https://www.manageengine.com/products/applications_manager/?relPrd)