R2025a:Unable to open the requested feature. Error code: -202

Unable to open the requested feature.Check your internet connection and proxy settings in your operating system's network settings and then try starting the feature again.

For more information see https://www.mathworks.com/pi_mpi_cef_R2025a_win64

Detailed information:

Error code: -202

Error message: ERR_CERT_AUTHORITY_INVALID

URL requested: https://127.0.0.1:31515/ui/webgui/src/index-jsd.html?snc=2KZKKA&websocket=on&terminateOnClose=true

Answer 1

[Jacob Mathew]

Hey Yao,

The link you see after "For more information" redirects to the following MATLAB Answers post:

https://www.mathworks.com/matlabcentral/answers/92634-why-do-i-get-a-connection-error-when-installing-or-activating-matlab-or-other-mathworks-products?s_tid=pi_ce_ac_R2025a_maci64

The invalid certificate is either related to a network issue or the date and time being incorrect on the machine from which you are trying to acess. The above post goes into details on the possibilties and how to fix it.