A slow cloud application, a failed VPN tunnel or an overloaded NBN service can all look like the same problem to a frustrated user: “the internet is down”. The best network monitoring tools help IT teams separate perception from evidence, showing where an issue sits before lost productivity turns into a support backlog.
For Australian businesses, that visibility matters across more than the office LAN. A typical environment may include NBN or business fibre, branch sites on fixed wireless, remote staff, cloud phone systems, Wi-Fi networks and software hosted in several locations. The right platform gives your team a clear view of availability, performance and capacity across the whole service chain.
What good network monitoring should tell you
Network monitoring is not just a dashboard full of green and red icons. It should answer practical operational questions quickly: Is the service actually unreachable? Is latency affecting voice calls? Has a firewall interface reached capacity? Is one remote site having a local issue, or is a wider provider outage in play?
At a minimum, a worthwhile tool collects data through SNMP, flow records, logs, synthetic tests or installed agents. It then turns that data into useful alerts, historical trends and reports. The difference between products is in how broadly they monitor, how much setup they require and whether they suit a small network or a complex multi-site environment.
Avoid choosing purely on the number of metrics a platform can collect. A monitoring system that sends hundreds of low-value alerts at 2 am is less useful than one that identifies the likely cause, routes an alert to the right person and provides enough context to act.
The best network monitoring tools to consider
There is no single winner for every organisation. The right choice depends on your network size, existing IT skills, budget, security requirements and whether you need to monitor cloud services alongside physical infrastructure.
1. PRTG Network Monitor
PRTG is a strong all-round option for small and mid-sized organisations that want broad monitoring without assembling several separate tools. It uses sensor-based licensing and can monitor switches, routers, firewalls, servers, applications, bandwidth and environmental devices.
Its visual maps and pre-built sensors make it approachable for lean IT teams. The trade-off is that sensor counts need careful planning. A detailed multi-site deployment can consume licences faster than expected, so map your priority services before committing.
2. SolarWinds Network Performance Monitor
SolarWinds Network Performance Monitor is built for teams that need deep visibility across large network estates. It is particularly capable for device discovery, interface health, traffic analysis and fault isolation across complex routed environments.
It can be a good fit for enterprise networks with dedicated administrators and formal reporting needs. It is generally more involved to deploy and manage than lighter cloud-based products, so it suits organisations prepared to invest time in configuration and ongoing platform administration.
3. ManageEngine OpManager
ManageEngine OpManager offers practical network monitoring with a broad range of related IT management products available in the same ecosystem. It covers devices, links, wireless infrastructure, virtual systems and server performance, while adding useful topology maps and alerting workflows.
For growing Australian businesses, it can be a sensible middle ground between entry-level monitoring and enterprise suites. Consider it if you expect to add configuration management, service desk functions or log analysis over time. As with any suite, check that the modules you need are included in your chosen licensing model.
4. Auvik
Auvik is designed around cloud management, automated network discovery and configuration backup. It is particularly relevant for managed service providers or internal IT teams responsible for multiple customer or branch environments.
The clean interface and remote management focus can reduce time spent documenting networks manually. Its value is strongest where many sites, switches and firewalls need regular attention. For a very small single-site network, its feature set may be more than you need.
5. LogicMonitor
LogicMonitor is a cloud-based observability platform suited to hybrid infrastructure. It can bring network devices, servers, cloud workloads and applications into one monitoring environment, making it useful for organisations shifting workloads between on-premises equipment and public cloud services.
Its automated discovery and integrations help reduce manual setup, but the platform is best used by teams willing to tune dashboards, thresholds and escalation policies properly. It is not a set-and-forget replacement for sound network design or responsive support.
6. Datadog Network Monitoring
Datadog is widely used by cloud-focused engineering and operations teams. Its network monitoring works alongside infrastructure, application performance and security monitoring, helping teams connect a poor user experience to traffic patterns, services and workloads.
It makes the most sense when your organisation already uses containers, cloud platforms and modern application delivery practices. Traditional office networks can still be monitored, but a business looking mainly for switch and firewall visibility may find a dedicated network tool easier to operate and price.
7. Zabbix
Zabbix is an open-source monitoring platform with impressive flexibility for organisations that have strong technical capability in-house. It can monitor network hardware, servers, applications and custom services, with templates and integrations supporting a wide variety of devices.
There are no traditional software licence costs, but free software does not mean free operations. Setup, template maintenance, alert tuning, upgrades and troubleshooting require skilled time. Zabbix can be excellent value for capable teams, while being a poor fit for a business that needs vendor-led support and a fast rollout.
8. Nagios XI
Nagios XI builds on the long-established Nagios monitoring ecosystem. It offers extensive customisation and a large community of plugins, making it suitable for unusual environments or organisations with highly specific monitoring requirements.
Its flexibility comes with a steeper learning curve than many newer platforms. It is most compelling where IT staff are comfortable managing monitoring logic directly and need the freedom to adapt checks to legacy systems or specialised equipment.
9. ThousandEyes
ThousandEyes focuses on digital experience and internet-path visibility. Rather than only showing whether a device is online, it can help identify where performance degradation occurs between users, internet providers, SaaS platforms and cloud services.
That is valuable for businesses dependent on Microsoft 365, cloud PBX, video meetings and customer-facing applications. It is usually an addition to core device monitoring rather than a replacement for it, especially where local switches, Wi-Fi and firewall capacity also need attention.
10. Checkmk
Checkmk is another flexible option that spans network, server, cloud and application monitoring. It is known for efficient polling and strong automation features, and it is available in both open-source and commercial editions.
It suits organisations that need significant scale without losing detailed control over monitoring rules. As with Zabbix and Nagios, the best outcomes depend on internal expertise. Plan for ownership, documentation and alert governance from the outset.
How to choose the best network monitoring tools for your environment
Start with the services that cause the greatest business impact when they fail. For a retail group, that might be site connectivity, payment terminals and guest Wi-Fi. For a professional services firm, it may be cloud phone quality, VPN access and Microsoft 365 reachability. For a developer or enterprise operation, private fibre links, SD-WAN paths, firewalls and cloud workloads may all be critical.
Then decide whether you need device monitoring, flow monitoring, log analysis, application monitoring or internet experience testing. These are related capabilities, but they are not identical. A basic ping check can confirm that a branch router responds. It cannot explain whether a saturated upload link is causing voice quality problems, or whether users can reach a particular SaaS service through their normal internet path.
Also consider where alerts will go and who will act on them. Integrations with ticketing systems, email, SMS and collaboration platforms are useful only when escalation rules are clear. Set different thresholds for warning and critical events, use maintenance windows for planned work, and suppress repeat alerts during a known outage. Good alert design protects your team from noise.
Set up monitoring around service continuity
The most effective deployments begin with a simple baseline. Monitor internet availability and latency at every site, key firewall and switch interfaces, Wi-Fi controller health, VPN tunnels, DNS, cloud phone services and essential business applications. Capture normal performance for several weeks before setting aggressive thresholds.
Use dashboards for different audiences. A service desk needs current status and fast diagnosis. IT leaders need trends in utilisation, recurring faults and capacity risk. Business stakeholders generally need a clear view of service availability, not a detailed chart of every interface.
Monitoring also works best alongside dependable connectivity and a tested fallback plan. A secondary service, 4G or 5G backup, diverse paths or SD-WAN can reduce the impact of an outage, but only if monitoring confirms failover has occurred and the backup service is performing as expected.
Choose a platform your team can maintain, not just one that looks impressive in a demonstration. When monitoring reflects the services your people rely on every day, it becomes a practical early-warning system that helps keep customers connected and staff productive.