Unable to access illustrator in education system

Hello @Somporn290444317hcx,

We understand that encountering technical issues can be frustrating. Would you mind confirming if the problem persists when switching to a different network? If yes, you will need to contact your School/University's IT admin to create a support case through the Admin Console (https://helpx.adobe.com/enterprise/using/support-for-enterprise.html). We'll be able to assist you faster this way.

Thanks,

Anubhav

Note: Marking correct for visibility.