Mac OS Catalina Sidecar error 32002

Hi Andrew,

your hint towards the VPN solved my connection problem. I had CISCO Anyconnect app running on my iMac which not only blocked Sidecar but also the "Import form iPhone" feature in the Finder.

Thanks for the hint!

Best

Christian

I have found a solution to my issue with SideCar where it was working wirelessly but not working using the USB cable.

After checking through the other solutions described I was still having the issue

• Apple ID matches
• Trust relationship reset
• Reset home folder permissions
• Reset MacOS networking stuff
• etc etc

I have ESET Smart Security (Antivirus + Firewall application) installed and I had the USB connection to the IPAD classified as a public network. When reviewing the Firewall logs, I could see connections being blocked. After changing the classification to "Home" or "Work" SideCar connected immediately with the USB cable. Now I can charge my iPad from my MacBook and use SideCar at the same time.

Other Firewall applications may also interfere with the operation of SideCar.

You can easily test this by temporarily disabling your firewall. I would strongly encourage you to ensure you configure the firewall correctly rather than simply turning it off to resolve the issue long term.

I have the same problem with the same error. I reset the user permissions as described and restarted the Mac again. Nothing happened.

Edit: Reseted the “Trust This Computer” settings on my IPad. Now it works fine.

Are you running a third party firewall program? Temporarily disable and check again if USB works. If so fix your firewall rules to allow this connection.

It might seem odd that a firewall blocks a USB connection. In my case ESET Smart Security was causing the USB connection to be seen as “Public” and to not trust the device.

Solution has been found on reddit.

Following the instructions, I noticed there were two .plist files in particular that looked suspicious: 

/Library/Preferences/SystemConfiguration

preferences.plist contained a reference to "iPad USB" (even though I didn't see iPad USB in my "Network" settings). 

NetworkInterfaces.plist contained multiple references to "iPad". 

I made a backup of the two .plist files, deleted them from the SystemConfiguration folder, and rebooted. Voila! Now Sidecar works over USB.

Hi,

found a solution that works for me here: https://github.com/pookjw/SidecarPatcher/issues/5

I ended up plugging the iPad in using a USB-c to lightning cable, accessed the iPad via finder and went through the trust authentication steps. 

After reconnecting sidecar worked fine using the usb-c cable that was shipped with my iPad 12.9.

regards,

Andreas

Disabling "Internet Sharing" in my MacBook's Sharing preferences did the trick for me. You might want to make sure you're not using the iPad for tethering or sharing the internet in the other direction.

https://www.reddit.com/r/MacOS/comments/dsfkg1/sidecar_only_works_over_wifi_plugging_in_a_usbc/

Following the instructions, I noticed there were two .plist files in particular that looked suspicious:

/Library/Preferences/SystemConfiguration

preferences.plist contained a reference to "iPad USB" (even though I didn't see iPad USB in my "Network" settings).

NetworkInterfaces.plist contained multiple references to "iPad".

I made a backup of the two .plist files, deleted them from the SystemConfiguration folder, and rebooted. Voila! Now Sidecar works over USB.

it works for me

1. Open Terminal
2. cd /Library/Preferences/SystemConfiguration
3. sudo rm -rf NetworkInterfaces.plist
4. sudo rm -rf preferences.plist
5. Restart Mac

It also worked for me after I reset the "Trust this Computer" settings on my iPad.

Hey Walt501,

Thank you for using Apple Support Communities!

I understand from your post that you're having issues using Sidecar with your MacBook Pro and iPad Pro due to an error message. I'd be happy to help out.

You've done great steps so far! To continue, I'd like for you to reset your user permissions to test:

Resolve issues caused by changing the permissions of items in your home folder - Apple Support

Let us know the result.

Cheers!

Same problem here, but with an iMac 5k. Works over WIFI, but not over USB (in this case USB-A to Lightning iPad Pro 12.9").

Have tried resetting trust, and fixing home folder permissions as documented in this thread.

I had the same problem. Then I restarted the macbook and the ipad. Then it worked :)

How do you confirm a cable is for power only? I'd like to confirm it is a hardware issue before I start digging in software settings.

I just solved my problem. I'm not sure it's working for everyone.

1. Log-out and re-log-in for both iPad and Macbook pro. (didn't work.)
2. reset the privacy setting for 'trust this computer' (didn't work)
3. delete the devices (iPad pro and Macbook pro) on my device list by iPhone, and re-log-in to iCloud. (didn't work)
4. reset all settings for iPad (worked)

I think step 1 and step 3 are kinda important to reset the connection.

Hope you find a way to solve the problem.

Wi-Fi only is inconvenient when I want to charge my iPad while it's being used in SideCar mode. horstfromtoronto's suggestion worked. To save others a web search, here's Apple's guide on reseting trust settings on iOS: https://support.apple.com/en-us/HT202778#change

This process didn't actually ask me to re-"Trust this Computer" – it just simply worked when I launched SideCar again.