Viper V3 Pro - Dongle detected but not working / No LED light | Razer Insider
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Viper V3 Pro - Dongle detected but not working / No LED light

  • July 31, 2025
  • 4 replies
  • 462 views
R

Hi, I’m having an issue with my Razer Viper V3 Pro.

When I plug the wireless dongle into my PC, Windows immediately detects it (I get the USB connection sound and it shows up in Device Manager), but the dongle doesn’t light up, there’s no LED or any sign of activity.

The mouse doesn’t work wirelessly at all, no cursor movement, no connection. I also tried connecting the mouse via the USB-C cable, and in that case, it works perfectly fine. The PC recognizes it, and I can use it normally.

I’ve already tried updating the firmware and using Razer Synapse, but the issue remains. I’m not sure where the problem is, whether it’s the dongle, the mouse, or a pairing issue between them.

 

Any help would be greatly appreciated.

Has anyone else experienced this? 

    4 Replies

    S

    Hi im experiencing this right now  did u solve it ? 

     

    E
    • eldani257
    • Insider Mini
    • October 20, 2025

    Hi, I’m having an issue with my Razer Viper V3 Pro.

    When I plug the wireless dongle into my PC, Windows immediately detects it (I get the USB connection sound and it shows up in Device Manager), but the dongle doesn’t light up, there’s no LED or any sign of activity.

    The mouse doesn’t work wirelessly at all, no cursor movement, no connection. I also tried connecting the mouse via the USB-C cable, and in that case, it works perfectly fine. The PC recognizes it, and I can use it normally.

    I’ve already tried updating the firmware and using Razer Synapse, but the issue remains. I’m not sure where the problem is, whether it’s the dongle, the mouse, or a pairing issue between them.

     

    Any help would be greatly appreciated.

    Has anyone else experienced this? 

    me pasa lo mismo 

    J
    • juanrabaa
    • Insider Mini
    • June 15, 2026

    I’m having the same problem and the support doesn’t seems to be of any help.

    J
    • juanrabaa
    • Insider Mini
    • June 15, 2026

    I wasn’t able to turn off the mouse. I tried again and it worked for some reason. I disconnected the dongle and the mouse from the PC, and I procceded to turn off the mouse with the power button. It started blinking white. After that, I connected the dongle to the PC again, and the led turned on pairing with the mouse.
    No idea what happened, but I’m glad I got it to work.

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