You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Failed to open a connection to the device (-21345)

Trying to reinstall the Visioneer RoadWorriorX3 scanner after replacing and upgrading my system I'm at 11.6.4 (20G417) and no software updates are available. I went through and followed all the directions and installed the drivers. I then went into system preferences and under 'Printers & Scanners' and it installed it to the system. When I select the USB Mass Storage and open scanner it brings up the scanner window but after a while, I get the error message. The scanner is powered up.


If I remove the USB cable and then plug it in and press the power button the error msg goes away and then reports looking for the scanner and then fails again.


Visioneer reports all the drivers are installed.



Posted on Mar 2, 2022 3:19 PM

Reply

Similar questions

1 reply

Mar 3, 2022 12:23 PM in response to jeffinappleland

Hi jeffinappleland,


With your scanner unable to complete the setup to your Mac, enter safe mode and try completing the setup according. To enter safe mode:


  1. Restart your Mac
  2. Press and hold the Shift Key and the Mac starts up
  3. Release the key when you see the login window, and then log in to your Mac


You can find these steps and steps for a Mac with Apple silicon in How to use safe mode on your Mac.



Regards.


Failed to open a connection to the device (-21345)

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.