A mouse can show as connected to your computer but still fail to move the cursor, click buttons, or respond normally. The cause may be a USB connection, wireless receiver, battery, driver, operating-system setting, or a problem with the mouse itself.
If your mouse is connected but not working, reconnect it, try another USB port, check the battery if it is wireless, and test the mouse on another computer. If the cursor moves but a specific button does not respond, use the appropriate mouse diagnostic test to identify the problem.
Why Is My Mouse Connected but Not Working?
A connected mouse does not always mean that the computer is receiving usable input from it. Windows or another operating system may detect the device while the mouse still has a connection, driver, power, button, sensor, or software problem.
The most common causes include:
Mouse Connected but Cursor Is Not Moving
If the mouse buttons appear connected but the cursor does not move, the first thing to determine is whether the computer is receiving movement input.
Move the mouse across a suitable surface and watch the cursor. If nothing happens, reconnect the mouse and test another USB port. For a wireless mouse, check the receiver connection and battery before moving to software troubleshooting.
Mouse Connected but Buttons Are Not Working
If the cursor moves normally but one or more buttons do not respond, the problem may be limited to the mouse buttons rather than the connection.
Test the left, right, and other available buttons separately. If one button consistently fails while movement continues normally, this provides a useful clue that the problem may be related to the button, switch, configuration, or mouse hardware.
How to Fix a Mouse That Is Connected but Not Working
1. Reconnect the Mouse
Disconnect a wired mouse and reconnect it firmly. For a wireless mouse, disconnect and reconnect the receiver if applicable.
After reconnecting, wait briefly and test the cursor again. A temporary connection problem can sometimes prevent normal mouse input even when the device appears connected.
2. Try Another USB Port
Move the mouse to another USB port on the computer. If the mouse works from another port, the original port or its connection may be contributing to the problem.
When troubleshooting, connect the mouse directly to the computer rather than through an unpowered USB hub whenever possible.
3. Check the Wireless Mouse Battery
If you are using a wireless mouse, check its battery or charging level. A mouse can remain connected intermittently while having insufficient power for reliable operation.
Replace or recharge the battery according to the mouse manufacturer’s instructions, then reconnect the device and test it again.
4. Check the Mouse Sensor and Surface
If the cursor moves inconsistently, inspect the sensor area underneath the mouse and make sure the tracking surface is suitable.
Dust, debris, reflective surfaces, transparent surfaces, and unsuitable materials can sometimes interfere with optical tracking.
5. Restart the Computer
A restart can help when the problem is caused by a temporary operating-system or device-state issue.
After restarting, reconnect the mouse and check whether normal movement and clicking have returned.
6. Check Mouse Settings
Operating-system mouse settings can affect pointer behavior, button configuration, speed, acceleration, and other input characteristics.
If the mouse works but behaves differently than expected, review the mouse settings and manufacturer software installed on the computer.
7. Check Drivers and Mouse Software
A driver or manufacturer utility can sometimes interfere with mouse input. If the problem started after installing or updating mouse software, check whether the software contains changed button mappings, sensitivity settings, profiles, or other input options.
For persistent problems, compare the behavior with the manufacturer’s recommended driver or software configuration.
How to Tell Whether the Mouse or Computer Is the Problem
One of the most useful troubleshooting steps is to test the mouse on another computer.
If the mouse works normally on another computer, the original computer, USB port, operating-system configuration, driver, or software may be responsible.
If the same problem follows the mouse to another computer, there is stronger evidence that the mouse itself, its connection, battery, or hardware may be involved.
Mouse Is Connected but Keeps Disconnecting
A mouse that repeatedly connects and disconnects may have an unstable physical or wireless connection.
For a wired mouse, try another USB port and inspect the cable for visible damage. For a wireless mouse, check the battery, receiver placement, and possible wireless interference.
If possible, test the mouse on another computer. This can help determine whether the problem follows the device or stays with the original computer.
Mouse Works but Feels Slow or Delayed
A mouse can be connected and functional while still feeling unusually slow or delayed. This can involve pointer settings, software, connection quality, system behavior, or input latency.
If you are investigating response problems, use the Mouse Latency Test to perform a browser-based latency check.
For high-refresh or gaming mice, polling behavior can also be relevant. The Mouse Polling Rate Test can help you investigate the reporting behavior observed by the browser.
Mouse Connected but Double Clicking
If the mouse moves normally and buttons work but a single click sometimes produces two clicks, the issue is different from a completely disconnected mouse.
Repeated unintended double clicks can be related to the mouse switch, button behavior, software, or operating-system configuration.
If you want to investigate the possible causes and solutions in more detail, read our guide on why a mouse double clicks when you click once.
Mouse Scroll Wheel Is Not Working
If the cursor and buttons work but scrolling does not, the problem may be specific to the mouse wheel or scroll input.
Try scrolling in more than one application or webpage. If scrolling consistently fails, test the wheel directly with the Scroll Wheel Test.
Mouse Works in One App but Not Another
If the mouse works normally on the desktop or in your browser but stops responding inside a particular application or game, the mouse itself may not be the primary problem.
Some applications use their own input systems, sensitivity settings, acceleration options, profiles, or raw-input behavior.
Check the affected application’s input settings and compare its behavior with normal desktop use before replacing the mouse.
What If Nothing Fixes the Mouse?
If reconnecting the mouse, changing USB ports, checking the battery, testing another surface, and trying another computer do not resolve the problem, the device may have a hardware or connection issue.
Before replacing it, confirm whether another mouse works correctly on the same computer. This simple comparison can help separate a computer-side problem from a mouse-side problem.
Quick Mouse Troubleshooting Checklist
- Reconnect the mouse.
- Try another USB port.
- Check the wireless battery.
- Reconnect the wireless receiver.
- Clean the sensor area carefully.
- Try a suitable mouse surface.
- Restart the computer.
- Check mouse and pointer settings.
- Review mouse drivers and manufacturer software.
- Test the mouse on another computer.
- Test individual mouse functions with browser-based diagnostics.
Use the Right Mouse Test for the Problem
Different mouse problems require different tests. Instead of using one test for every issue, choose the diagnostic that matches the symptom.
Still Having Mouse Problems?
Run a complete browser-based diagnostic and identify which mouse function is causing the problem.
Run Mouse Diagnostic Test →Frequently Asked Questions
Why is my mouse connected but not working?
A connected mouse may fail because of a USB connection, wireless battery, receiver, driver, operating-system setting, sensor problem, or hardware fault. Try another port and, if possible, test the mouse on another computer.
Why is my mouse connected but the cursor does not move?
The computer may not be receiving usable movement input. Reconnect the mouse, try another USB port or wireless receiver position, check the battery, and test the mouse on another surface.
Why does my mouse work but the buttons do not?
If cursor movement works but buttons fail, the issue may be isolated to button input, button configuration, software, or mouse hardware. Test the buttons individually with a mouse button diagnostic.
Why does my wireless mouse say connected but not work?
Check the battery, power switch, wireless receiver, receiver connection, and possible wireless interference. Reconnecting the receiver and testing another USB port can also help.
How do I know if my mouse is broken?
Test the mouse on another computer. If the same problem occurs there, the mouse itself is more likely to be responsible. If it works normally on another computer, investigate the original computer’s settings, drivers, ports, or software.
Can I test my mouse without installing software?
Yes. Browser-based mouse diagnostic tools can test functions such as movement, buttons, clicking, scrolling, polling behavior, and latency without requiring a desktop application.
Complete Your Mouse Diagnosis
If your mouse is connected but still behaving incorrectly, avoid changing several things at once. Test one component at a time and compare the results.
Start Mouse Diagnostic →Start with the basic connection, power, USB port, and surface checks. Then use the relevant Mouse Diagnostic Test to investigate the specific symptom.
Testing the mouse systematically makes it easier to determine whether the problem is related to the mouse, computer, connection, settings, or a specific application.