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Razer Viper Ultimate Dongle

  • June 29, 2026
  • 1 reply
  • 22 views
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Dear Support Team,
The USB dongle of my Razer Viper Ultimate mouse is broken.
During operation, the USB dongle suddenly stopped working. There are constant connect and disconnect processes, regardless of whether the dongle is used in the dock or directly in the USB port.
The same error occurs with a different computer.
The mouse works perfectly with a USB cable.
I hope you can help me.
Thank you in advance.

This topic has been closed for replies.

1 Reply

Razer.ScarletRouge

Hey there, ​@Pixelvernichter 

I understand that your Razer Viper Ultimate USB dongle is malfunctioning, causing constant disconnect and reconnect issues on multiple devices, while the mouse works perfectly in wired mode. Please try the troubleshooting steps below to help resolve the issue:

  • Power is important. Make sure your mouse is fully charged.

  • Switch it ON. Make sure wireless mode is ON or the mouse is switched to the correct wireless mode.

  • Verify Windows is up to date.

  • Connect the USB dongle directly to the PC and verify there is a clear line of sight from the mouse to the dongle.

  • Update the firmware on your mouse if it is on the list.

  • Download and run the Pairing Utility for your mouse. If your device is not listed, skip this step.

  • Check if a software is causing the issue by closing all Razer apps and software.

    Razer Synapse on the system tray

  • If closing Razer Synapse fixed the issue, reinstall your mouse drivers, and perform a clean reinstall of Razer Synapse.


If the issue persists after performing the troubleshooting steps, please send me a private message along with your device's serial number so I can check its details in our system and assist you further. Thank you!



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