Internet is slow on just one device, not the whole network

Symptoms

• One computer, phone, or tablet loads pages slowly while others are fast
• Speed test on the slow device is much lower than on other devices on the same Wi-Fi
• Problem follows the device even to a different network
• Device used to be fast and has gradually or suddenly slowed down

Likely causes

• CommonBackground processes or apps consuming bandwidth or system resources on that deviceAutomatic updates, cloud sync, or too many open browser tabs can make browsing feel slow even with a fine connection.
• CommonOutdated network driver or hardware limitation on that specific deviceAn older device's Wi-Fi hardware may simply not be capable of the same speeds as newer devices, regardless of network quality.
• PossibleWeak Wi-Fi signal specific to that device's antenna or positionA device with a weaker antenna or held at an awkward angle can get less signal than another device sitting right next to it.
• PossibleMalware or excessive storage/memory usage slowing down the device generally, not just internet-related tasksA generally overloaded or infected device can make everything, including web browsing, feel sluggish.

What to do

1. Run a speed test on the slow device and compare it directly to a speed test on another device in the same room at the same time.
2. Close unnecessary apps and browser tabs on the slow device and check for any large background downloads or updates in progress.
3. Restart the device fully, since accumulated background processes and memory issues often build up over time.
4. Check for and install any pending operating system or network driver updates on that device.
5. Move the device closer to the router temporarily to rule out a weak, device-specific Wi-Fi signal.
6. Run a malware/antivirus scan on the device if it seems generally sluggish beyond just internet-related tasks.
7. If the device is several years old and simply has slower hardware, some of the slowness may be an inherent limitation rather than something fixable through troubleshooting.

Tools and parts

• Speed test app or website

When to call a pro

If a specific device remains slow even after these steps and it's relatively new, a computer or phone repair shop can check for hardware issues affecting its network performance.

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