4KSW21-DM second monitor does not work?

The second monitor does not work.

Product model: 4KSW21-DM

Here are some troubleshooting steps you can try to resolve the issue with your 4KSW21-DM.

Steps to troubleshoot.

  1. Check the DIP switch to make sure it’s in KVM mode for dual monitor setup.
  2. Make sure both HDMI cables are connected from the source to the KVM switch and are in the same group for each source.
  3. Ensure that HDMI cables are not longer than 5m/16ft, and for 4K@60Hz 4:4:4, keep it below 3m/10ft. Test the cables directly to ensure they’re functioning properly.

If the problem persists, please feel free to contact our tech support at info@avaccess.com. We are happy to help!