To troubleshoot network problems, identify the type of problem and change one thing at a time while taking clear notes. Start with physical network checks, then configuration and computer settings, and finally, software issues such as firewall installation. Avoid assumptions and follow a logical approach.
To troubleshoot network problems, it’s important to have a basic understanding of how your network is set up. There are three categories of network problems: physical, configuration, and software. The first step to take when troubleshooting your network is to determine what kind of problem you have. This decision is the first of many that will help you fix the problem.
There are two simple rules that are critical if you’re going to troubleshoot your network successfully. The first rule is to change only one thing at a time and then test. A logical and methodical approach is the only efficient way to solve a technological problem.
There is often more than one cause for a network problem. If you can’t identify the action and its result, you have no idea if you’re on the right track or not. A series of changes can also create an unexpected result. One step at a time is the best way forward.
Writing everything down is the second rule of troubleshooting. Write clear, legible notes explaining the steps you took and the result. These notes are invaluable and help you build a knowledge base you can rely on when you’re trying to troubleshoot.
When experiencing network problems, always start with the physical network. Check devices, connections and power. Don’t make assumptions and check each connector carefully. These problems are the easiest to fix and the most common. Follow the cable to make sure everything is plugged into the right outlet.
If the problem isn’t hardware, look at the configuration. The first step is to create a system restore point in the setup software. This will allow you to start over from the same point if needed. Look at your notes since installation and be sure to take new ones.
To begin troubleshooting, you need to check the configuration of each computer on your network. This information can be accessed by typing “ipconfig” at the command prompt for each computer. To get the full level of detail, type “ipconfig /all”. Review the details and compare with the original configuration. Errors or inconsistencies will be the cause of most problems.
The most common software problems involve the firewall installation. Check your antivirus software, as they are often bundled with a firewall. Installing multiple firewalls will create a cascading series of network problems. Look for any settings that may have been adjusted or changed.
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