Basic Network Troubleshooting Steps
- Check the Hardware
Ensure all cables, routers, and switches are properly connected and powered on. A loose cord or switched-off device can be the root of network issues. Restart your modem, router, and PC, leaving each off for at least 60 seconds before powering them back on. - Verify IP Configuration
Open Command Prompt and type ipconfig. Your router’s IP is listed as “Default Gateway,” while your computer’s IP appears next to “IP Address.” If your IP starts with 169, your computer isn’t receiving a valid address. Run ipconfig /release followed by ipconfig /renew to request a new IP. If the issue persists, connect directly to the modem via Ethernet to check if the problem is with the router. - Use Ping and Tracert
If you have a valid IP but still can’t access the internet, test connectivity using the ping command. Type ping 8.8.8.8 to check if your router can reach Google’s DNS servers. Adding -t (ping 8.8.8.8 -t) keeps the test running while you troubleshoot. If the pings fail, use tracert 8.8.8.8 to map the connection path and identify where the issue occurs—whether within your local network or beyond. - Perform a DNS Check
Run nslookup google.com to check DNS resolution. If errors like “Timed Out” or “Network Is Unreachable” appear, the issue may stem from the DNS server. You can also test your own DNS server using nslookup. - Check with Your ISP
If previous steps don’t resolve the issue, contact your internet service provider (ISP) to check for outages. Online outage maps or reports from other users in your area can provide further confirmation. - Scan for Malware
Ensure antivirus and anti-malware software is active and hasn’t flagged network-related threats that could disrupt connectivity. - Review Database Logs
If network performance is erratic, check database logs for errors or capacity issues. A malfunctioning database can indirectly impact network stability.