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J

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January 19th, 2025 04:17

KVM issues 3421W

I seem to be having issues with my KVM - laptop connected via USB - C to USB C on monitor. Using the Dell wireless keyboard dongle the keyboard works but mouse wont. Other periperals connected to monitor vis USB such as camera not working. 

If I put dongle into laptop  all works ok. if I plug camera into PC works.

If I plug USB C into a phone all peripherals work.

All dell software and drivers loaded.

On boot up keyboard and mouse work for moment but then mouse stops working.

How can I leave wireless dongle plugged into monitor so laptop can access USB accesories and Mouse?

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56.8K Posts

January 19th, 2025 18:21

Dell Support must verify the ownership and warranty status. Click the blue "Get Help Now" on the right to start a private live chat session. Share the private Monitor Service Tag with them.

Is this monitor still under warranty?
* Go here
* Enter your private Service Tag in the blank
* That will show you the specific model, warranty status, etc.

Do you mean the P3421W or U3421WE?
What Laptop model and operating system?

* Enter the Monitor Menu OSD
* Go to Others
* Choose Factory Reset
* When done exit the Menu OSD

Assuming the dongle is USB-A? Test it on all of the Monitor USB-A downstream ports.

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