I have installed ARM DS IDE and tried to get evaluation license at the start.
But I failed to login and encountered with the following error:
"Unable to execute API call /api/v1/connect"
I have found similar issues registered previously in this bulletin.
Can you check again if the license server is working or not?
You can use keytool for importing a corporate certificate into JDK used for ARM DS IDE.Please refer to the following link for the detailed guide.