How to solve error 1616 for licence activation when old computer crashed and License Center doesn't show a deactivation tab?

My old computer crashed. I tried to install Matlab on my new one. Activation generates error 1616.

Mathworks solution to deactivate the old computer does not apply as it already seems to be desctivated. It does not generate a deactivation tab.

When I try to manually activate the license in the License Center, an unspecified error is generated in case the Mac address has been used or it states that `Information needed to identify your computer is missing or invalid.` when the local ip/address (IPv4) is used.

What more can be tried?

[Dyuman Joshi]

See this thread - https://in.mathworks.com/matlabcentral/answers/92674-why-do-i-receive-error-353-or-error-1-616-no-more-activations-available-when-attempting-to-activat

[Walter Roberson]

You do not use the IPv4 address; you use the MAC address (or else the disk serial number, for windows only)

[Robert]

I tried the MAC address, the IPv4vaddress (as suggested sometimes) and also the Volume Serial Number. All resulted in an error when I tried to generate a license file.

Answer 1

[Image Analyst]

On the web site, login to your account and look at your license(s).

Click on the tools icon:

You'll see this:

Click "Deactivate a Computer" to deactivate your old, inaccessible computer through the web site even if you no longer have physical access to the computer or can't boot or log in to it.

[Robert]

I don't see this. I guess my old compute is now deactivated. If so, my problem is to activate the new one. However, as I never consciously deactivated the old one myself, I was afraid that it was still hanging somehow.

[Image Analyst]

They're open right now. Call them right now for immediate and free help.

[Robert]

Thanks for the suggestions. I finally found it by looking better. My problem has been solved!