Chaos unified login is not running - Problem with Corona Licenses

[federico_storai]

Hello everyone,
I’m writing here with a desperate request for support as I opened a ticket (#457720) over 18 hours ago and haven’t received a response.
My Corona student license hasn’t worked for 2 days on my MacBook Air M4.
I had previously used this license on multiple locations (never simultaneously) without any problems.
The error that persists is: “Chaos Unified Login is not running,” and I’ve tried every step in the troubleshooting guide.
I’ve reinstalled Corona several times, updated Cinema 4D, but nothing has worked.
Has anyone encountered the same problem; how can I fix it?

Thanks in advance.

[d4l1]

Sometimes this happens for me too. But - at least on Windows 11 - you have to start the Unified Login Service manually.

[federico_storai]

I have a Macbook Air M4 with MacOs Tahoe 26.2

[d4l1]

Does this ‘Start Chaos Unified Login’ also exist on Mac?

[federico_storai]

probably is this : Download | My Chaos

but i can’t open it o run it on my macbook.

[maru]

Hi, the only way to get help with licensing issues is through this contact form - https://support.chaos.com/hc/en-us/requests/new
Once you know what the solution is, feel free to return here and share it with others.