Error communicating with the backend services

When downloading Matlab r2020a I get an error and it doesn't want to continue. The installer has created a zip, unpacked but upon set up I get an error message 'Error communicating with the backend services'. System requirements are good. Windows 7, service pack 1, Intel 64 bit operating, 4.0 G RAM and sufficient discspace avaiable ~50 GB. I'm having this error for the last two days. How can I avoid this error and download the Mathlab Simulink R2020A product?

[Nandan]

I am facing same isuue ....update when yours been resolved

[Muralidharan A N]

I am facing same isuue ....update me when yours been resolved

[Tobias Neumann]

Had the same problem, but on a second PC the installer started just fine (within the same network). It has something to do with blocking the communication to the MATLAB servers, so first check any antivirus/firewall software and temporarily disable it. For me this didn't solve the problem, but I got it running by executing the "setup_legacy.exe" in the "_temp_matlab_R2020a_win64\bin\win64" folder which got unzipped from the downloaded installer. Hope you get it running to. Stay save! (PS: I am not aware of differences of the legacy installer from the normal one, so please check you get the resulted setup you want!)

[Pablo Dorado Melara]

I recently tried to install Matlab r2020a and happened the same, so I tried the setup_legacy solution and it work, so thank you! :D

Did you find if the are any differences between normal and legacy?

[dario santoro]

thanks tobias, finally the download works

[Jack Bryant]

it just told me exception calling main

Answer 1

[Rajani Mishra]

I have found few relevant links, refer below for them :

https://www.mathworks.com/matlabcentral/answers/489806-why-do-i-see-the-error-something-unexpected-occurred-when-installing-matlab-or-another-mathworks-p

https://www.mathworks.com/matlabcentral/answers/92634-why-do-i-get-a-connection-error-when-installing-or-activating-matlab-or-another-mathworks-product

If you still need help please contact MathWorks support