HELP - Verify your V-Ray license

This morning, sudenly Vray stopt working and gave me a pop-up saying: Verify your V-Ray License. Using V-Ray requires a valid license and an account. Please sighn in to your Chaos account.

Pressing the sigh in button does nothing, and in the V-ray tab there is no sign in option (the whole tab is blank).

If I open my License server I can see that my license is active. Also, I can sill open the Cosmos browser and there I’m signed in.

Anyone know what to do?



Schermafbeelding 2025-07-01 113927.png

UPDATE

I think I found the problem! I’ve set the Brave Browser as my default browser recently, but I was still logged in in Edge (so I was logged in in two browsers). I switched my default brower back to Edge, signed out on both browsers (Chaos client as well as License Server). After a restart V-ray asked me to sign in (which I did in Edge) and V-ray worked again!

The same problem happens for me too since this morning.
Anyone from Chaos care to help?

I got the same thing, restarted PC and now it works

Had the same issue. Very very frustrating. Found a solution by going to the V-Ray menu at the top of 3ds Max then, Licensing → Chaos Account.

It will probably say you are already signed in which makes this issue all the more stupid, but hit Sign out and then confirm the Sign out. Your web browser should open and confirm this.

Then go back in that menu again and sign in. The browser will confirm completion. After doing this V-Ray was back up and running. Initially reinstalling V-Ray and restarting the PC did not help at all.​

Same here.
Restarted pc, didnt help.

todd_davis solution did work, thx.

Thank you very much, this worked for me!

Sign out and sign in again

It’s horrifying that this problem is occurring on a global scale.
Chaos should investigate the cause as soon as possible and publish an accurate solution.

Is this due to the introduction of Named licenses from July 1st?
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Hi everyone,

This issue has been happening to me since monday: I shut down my PC at night, and the next day V-Ray no longer works.

The most frustrating part is that I managed to fix it on Monday by restarting the Chaos Unified Login several times. But when I tried the same thing yesterday, it didn’t work.

So I ended up uninstalling and reinstalling all Chaos softwares, and that fixed it temporarily. Today, I tried to open V-Ray again and had the same problem.

I’ve restarted Chaos license server at least 10 times, reinstalled everything, restarted the PC, tried logging in and out through the browser and tried logging in via Extensions > V-Ray > Help > Chaos Account > Login
Nothing worked.

:frowning:
​

@nikolay.simeonov from the Technical Support team made a thread about how to solve the issue. Let’s continue the discussion there.

There seems to be a new issue, see this post (I’m having the same problem): License Error 1005 - Licensing :: Issues - Chaos Forum

For context:

Schermafbeelding 2025-08-21 162050.png

Try follow the step in this post: https://support.chaos.com/hc/en-us/articles/36798754083217-How-to-fix-sign-in-issues-with-V-Ray-Enscape-and-Corona

Thank you, step 2 did the trick for me!

glad to know it help.