P: Canon tethering stopped working after updating to Lightroom Classic v15.4

I figured it out! If anyone else has this issue and is pulling their hair out. ;-)

Need to go into your system settings and turn on permissions for removable drives. Oy vey. LOL.
 

I cannot use tether capture with my canon R5 now that I have update to 15.4 as I see others have the same problem. When will this bug be fixed??

Hello,

I am not able to get Lightroom Classic 15.4.1 to connect to my Canon EOS R5 (with the most recent firmware, I just updated today).

My OS is Tahoe 26.5.2, on a MacBook Pro M3 Max.

I am also using a brand new Tether Tools (orange) cord from camera to laptop.

I am able to get Capture One to connect to my camera (through a trial subscription to confirm it will work). When I try connecting camera to Lightroom via the ‘Tether Connection’ option I just get a window that says it is trying to establish a connection and never does. I’ve tried restarting everything, unplugging everything, deleting apps and re-installing them. I also deleted the Lightroom preferences as suggested on this page:

https://helpx.adobe.com/lightroom-classic/desktop/kb/troubleshoot-tethered-capture-lightroom.html

Nothing is working. Any thoughts? 

Thank you.

Larry Lilac posted the solution below: “I also found that checking “Use Canon SDK for tethering Canon cameras” solves the problem. So the native Adobe tethering doesn’t seem to work properly?” it’s in your Lightroom Preferences under the general tab...check the box and then restart Lightroom… THANK YOU LARRY!!!!!!!!

this same thing is happening to me and I have a shoot tomorrow...what a nightmare.

Whatever you updated doesn't work with my R6m3, you’re costing me a lot of time, money and patience...

Thank you Adobe for causing a catastrophic mess during a shoot when you decided to automatically update Lightroom Classic with “improved tethering.” You cost me money and time and you should really better test these improved features before forcing updates on people.

The tethering functionality for Canon was rewritten in 15.4, there seem to be some issues. You can disable it in preferences to go back to the old version. More info here: 

I’m stuck on LRC 13.5.1 due to tethering issues with the Fuji GFX100. After that Adobe added native support for the GFX100, but it’s missing tons of camera settings that are necessary for controlling camera settings while doing tethered shooting. I brought this up in this forum and answered some questions for the adobe experts that were engaging, but ultimately I had to downgrade LRC and leave it there. 

Just lost a prospective client due to the tethering problem. Not only couldn't get the images to write on the computer, but due to the buffering I couldn't write them down properly on my cards. It was showing me "card full" message after shooting just few images. I kept swapping cards and still had the same problem. I was suspecting camera failure (I have R5 mark II). 

Lots of stress, very unhappy client and wasted studio session. I don't understand how this is even called a professional software for photographers. Absolutely livid - lost time, money and got a serious reputation hit.

Paying almost £70 monthly for this.

After swapping cables, computers, cards finally realised it is the Lightroom. Changing the option to Canon SDK in Preferences finally fixed it for me, but way past the session time. 

Adobe, work on the basic functionality and optimisation rather than AI junk. Seriously, this is just ridiculous.