Beyond that, you’re free to’t customize the machine or load the profiles needed for your game.
Here’s how to fix Razer Synapse not detecting a mouse or keyboard on a Windows PC.
These instructions apply to all keyboards and mice sold by Razer.

Razer
However,keyboardandmouseissues likely aren’t tied to the Razer desktop software.
Instead, the problem may stem from connections between the peripherals and the PC.
Unplug and reconnect the peripheral.
Sometimes, there’s an issue with the connection.
If you think it might be the port, plug the peripheral into a different port.
Use a different PC.
Test it on a different PC to be sure theUSB portisn’t the problem.
This problem also applies to wireless mice, provided you rely on a USB-based dongle.
Sometimes a simple reboot is all that’s needed to get everything working again.
Scan for unit changes.This step refreshesDevice Manager.
Windows may not initially recognize your connected peripheral.
Performing a refresh forces Windows to re-scan the PC and all its ports for new additions.
If it discovers the mouse or keyboard, Windows automatically installs the necessary drivers.
Uninstall and reinstall devices.
A major cause for mouse and keyboard detection errors is the number of unnecessaryand possibly conflictingdrivers.
Update the serial bus controllers.
The drivers running your PC’s USB ports may need an update.
load the latest drivers.
you’re free to use the Synapse app to scan for new drivers.
For home-built systems, download drivers directly from hardware manufacturers.
Uninstall and reinstall Synapse.
Check the Synapse version.
Razer Synapse 3 doesn’t support all Razer-branded devices.
View Razer’sfull list of supported devicesand its Synapse 3 software on its website.
If your Razer gadget isn’t supported,download Razer Synapse 2.
Causes of Razer Synapse Not Recognizing Your Mouse
There are several reasons Razer Synapse may not work.
It’s a gear management program.
Any incompatibility between Synapse, Windows, the machine drivers, and the machine result in issues.