As of July 13th, support registration is required for creating a new topic


How/where do we register if we do have an activation code but we can not see the link in the software?


Hi @Bob_Leuven

What version of the software are you using? You should be able to see the link in software with the latest releases. Any reason why not to upgrade your software to the latest version?


Despite having license for long years, I am unable to see the New topic tab too, Please could you help



The problem is that ICT manages that within the company as it’s on a server.
I’ll have to make a special request for them to upgrade it, but it’s not very trivial.

Also I have no clue about forward/backward compatibility of lumerical.

The things is I do have the activation code which is why I asked and I know that we can sign up, up to a 100 users with the licenses over here but so far none of my colleagues within my department have done so.


Hi @bbb

Sorry for any inconvenience. Con you please follow the steps in the link below to register for support?

and elaborate on any error messages during the registration process?



Hi @Bob_Leuven

I assume upgrading the product is something that you need permission from “ICT”? Once the product is updated (which I believe worth the hassle), you should be able to register for support easily.

Our products versions are compatible, except the INTERCONNECT latest version. You will see a warning message when you save the file with the latest version of INTERCONNECT that you cannot open the file with older version once it is saved with the latest version.


Hi @Bob_Leuven, In addition to the comments above:

  • You can register from any product, so if you have at least one tool that is up-to-date, you can use the in product “Register” button
  • If you are unable to upgrade the tools right away, contact us via and my colleagues will be able to assist you with completing the registration manually

and @ mbenes

It took a while with ICT but we got it resolved and working now, thank you for the help.


I have received a mail saying I have successfully registered, but cannot see the new topic button. I appreciate if you can help me with this.


I checked your account and you should indeed be able to post a new topic right now. Can you please go to the and check if you see this button:

If not, please try to use ctrl+F5 (refresh page without using cache) and use a different browser. If you do not see the button, just screen shot it and let us know. We’ll investigate this further.

1 Like

Thank you, I was now able to see the button.

1 Like

Respected sir,

I am not able to create a new topic, here i am trying to post one doubt sir. i am new to lumerical , May i know how can we select the material buried oxide for may calculation?

Thank you


Dear @kanchana

You need to register for support to be able to create a new topic or to post. Please follow the steps to register and I will be glad to assist you with your inquires.


Where can I re-register and then regain permission to post?


Hi @17107005

It looks like your registration is completed. You can create a new topic now.


Thank you .


hello, I can’t register and I have an emergency question…

Mark your topic as resolved

Please see below:


Respect Sir,
Despite having registered successfully, I still cannot post a new topic.Would you please give me some help?


Please contact us at and my colleagues can assist you with your issue.