Speed and up/down test sites A list of websites that will test your internet connections. Nslookup Available for Windows, Unix, Linux, and Mac OS, this tool gives you DNS server diagnostics. Netstat This tool displays active connections on your computer. Ipconfig This command-line tool reports the IPv4 and IPv6 addresses, subnets, and default gateways for all network adapters on a PC. Tracert Free command-line utility that lists the probable hops to a network or internet destination address. Ping Simple command-line utility that checks on the speed of connections. 
Paessler Network Troubleshooting with PRTG Infrastructure management system that includes port monitoring. 
N-able RMM (FREE TRIAL) A remote monitoring and management tool that enables central IT departments to manage networks on several remote sites.
Datadog Network Performance Monitoring (FREE TRIAL) A cloud-based network monitoring and management service that includes troubleshooting tools. Great for resolving IP conflicts and can be run from the command line with the option to export results to file. SolarWinds Port Scanner (FREE TOOL)Check the TCP and UDP port status (open, closed, or filtered) of the IP addresses on your network devices to ensure that you don’t have unattended ports open. The NCM will gather all device configurations, allow the creation of standard settings, and ensure that any unauthorized changes are immediately rolled back. 
SolarWinds Network Configuration Manager EDITOR’S CHOICE An essential system security and administration tool that automatically checks on device settings.Here’s our list of the best network diagnostic tools and troubleshooting software: If the network engineers planned your network correctly, it should never encounter the problems that cause the system to slow down, and network analysis and management should be an enjoyable task. Network analysis can show you the leading causes of network problems, such as slow speeds, network connection problems, and packet loss center on overloaded network devices, such as switches and routers, or missing information in your routing table and other system databases, such as the DNS server or the DHCP system.īy using all of the network diagnostic tools in this list, you can put together a workflow that will give you information on all potential network problems. Like with most jobs, when it comes to network troubleshooting, the software you use can make a world of difference.
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