"Device Timed Out" error in Sidecar

Make sure to turn off any cellular data to the iPad to ensure that the device is only connected to the same wifi as the MacBook Pro. Any wifi assist or cellular network will interfere.

"Make sure that Handoff is not checked on both the iPad and the Mac." Does this mean Handoff should be off on both devices, or only that it must be off only on one of the two?

In fact, my issue got resolved after upgrading iPad to 13.2.3

Try turning picture in picture off on Ipad

Signing in and out on both my Macbook Pro and iPad Pro resolved this error for me as well.

No luck for me - MBP w/ Catalina 10.15.7, iPad Pro w/ iOS 14.5.1. Toggled bluetooth, handoff, restarted both, signed in / out of iCloud on both, same wi-fi, logged in w/ 2FA enabled. Still getting the 'Device timed out' error.

Sign out/in trick didn't work for me. Network settings reset didn't work either. I bought iPad because of this feature and it doesn't work.

Same for me, signed out and into Apple ID. Sidecar is a wonderful idea if it works. Not so much if it doesn't.

Restarted both iPad and MacBook. Both connected to same wifi, both bluetooth enabled, both running latest OS. Can see MacBook offering to connect to sidecar, just get device timed out error. Works with a cable though, but back to front if you know what I mean, uses the MacBook as secondary display. Works fine with my iMac. Any other ideas?

A VPN is a private network that I am guessing your child need for access to the college network. If this was a request by the school, they usually can help you set it up, basically it will require:

a) internet connection

b) software provided by the college, if that’s the case

c) username and password to connect to their private network

once that’s done, she will be able to access her math test.

about the brightness, it depends which device you’re on; if you’re using a mac, I usually change the screen’s brightness from the control bar on top of the keyboard. It must be also in the settings.

I hope that helps. Please let me know if you have any other questions.

I'm having this issue too and it's getting a little ridiculous. I have a 2019 16-inch MacBook Pro running MacOS Catalina 10.15.2 trying to sidecar an iPad Pro 12.9 inch (ML0G2LL/A) running iPadOS 13.4.1.

Here's what I've tried and nothings has worked, I still get the same timeout error:

• Turned on bluetooth for both devices
• Made sure both devices are on the same wifi
• Made sure neither device is signed into VPN
• Restarted both devices
• Signed out and signed back into iCloud on both devices
• Turned off Keep Today View on iPad Home Screen
• Turned off Do Not Disturb on both devices
• Set both device's display settings to Light mode (and turned off Night shift just in case)
• Tried turning handoff on and off for both devices and various combinations

At this point, should I start randomly trying other settings to see if any of them make a difference? Any other ideas?

Hi,

Im also having the same problem, and I did what u said, restart my iPad and set up all that. However, it only worked one time, does that mean that I have to restart my iPad whenever I need to set up the connection?

Here we go, yet another annoying, months old, unfixed bug from Apple as we watch them turn into Microsoft. Brand new 2020 MacBook Air, out of the box today, Sidecar fails. None of these workarounds fixes it. Getting very tired of Apple workarounds anyway. They seem to think that letting users fend for themselves and share bizarre, obscure workarounds that may or may not work counts as some kind of customer service for their (very) premium priced products. Sidecar was a nice idea but the execution is appalling. Generally have to run it on a 5 Ghz wifi or it stumbles - oh yes, another bizarre workaround found from another suffering user. I guess Apple has better things to do.

The new MacBook Pro and iPad Pro with fully updated systems - as many other users the iPad gives time-out when trying to connect it using sidecar.

Considering the costs of these devices I find this unacceptable, time to switch to different more reliable company ....

I did this, it still doesn't work