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Learn how to identify and troubleshoot packet loss issues that can cause slow internet, lag, and connection problems.
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Packet loss occurs when data packets traveling across a network fail to reach their destination. When packets are lost, applications may experience delays, interruptions, or poor performance.
Common signs of packet loss include:
The first step is determining where the packet loss is occurring.
Start by testing your local network, then test an external destination.
Find your router's gateway IP address and run a ping test.
Example:
ping 192.168.1.1
If packet loss occurs when pinging the gateway, the issue is likely within your home network.
Possible causes:
Next, test connectivity to an internet destination.
ping google.com
Alternative test:
ping 8.8.8.8
If packet loss appears only when testing external destinations, the issue may exist outside your local network.
Possible causes:
Determine whether the issue affects:
Questions to ask:
The more specific you can be, the easier it becomes to locate the source.
Inspect your network equipment.
Check:
Replace any damaged cables and ensure all connections are secure.
Heavy network usage can contribute to packet loss.
Common causes include:
Try pausing high-bandwidth activities and test again.
If packet loss persists, use traceroute to identify where the problem begins.
macOS/Linux:
traceroute google.com
Windows:
tracert google.com
Traceroute can help determine whether packet loss is occurring inside the home network, at the ISP, or farther along the internet path.
Packet loss can occur anywhere between your device and the destination. Start by testing your local gateway, then test external hosts, isolate affected devices, inspect hardware, and use traceroute to identify where the problem occurs.
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