articulate 360 after click sign in it show couldn't open port

Hi Amanda and welcome to E-Learning Heroes. 😊

Thank you for reaching out and letting us know that you're experiencing the same issue.

Were you able to check your allowlist to be sure that the domains are accessible as Lauren shared above? I do not see where Nattasak opened a support case with our team, so I do not have any additional information to provide at this time.