okay, you need to reach your ax service. you can do any of following
1) reach to following path inside your ax
System administration >> Setup >> System >> Server Configuration
here you can note down list of all AOS in your AX environment, Those names can possibly suggest you location of your AOS
reach to each AOS and make sure the service of AX is running
Or
2) contact your SysAdmin to know where your AOS is and whether service of AOS is up or not