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Dynamics 365 Community / Forums / Microsoft Dynamics AX (Archived) / Not able to connect to...
Microsoft Dynamics AX (Archived)

Not able to connect to AOS despite of no change in the setup

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Posted on by Abhinay Tharwal 1,215

Hi All,

          Thank you for reading the post. I was able to connect to the AX-09 AOS until yesterday and everything is very much unchanged today, but when I am trying to connect I get error message as "connection with the application object server could not be established." I am able to access the server-machine with the help of "Remote Desktop Connection" and login to Axapta session with the help of the essential credentials. Can you please suggest me the reason?

Regards,

Abhinay

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    Community Member Profile Picture
    Community Member on at

    As you can connect to the AOS server via RDP session, your local PC can find the AOS server name.

    1. Can you check if the port of the AOS service has been changed? You can check that in the AOS server configuration.

    2. or is there anything changed in Firewall? Install the telnet client and try the CMD command:

    telnet [AOS server] [AOS service port (2712 is default)].

  • Abhinay Tharwal Profile Picture
    Abhinay Tharwal 1,215 on at

    Hi Pin,

    Thank you for your suggestion. The issue was resolved by changing the firewall properties (Control Panel\All Control Panel Items\Windows Firewall -> Advanced setting -> Windows Firewall Properties-> Domain Profile tab -> Inbound connections (change from default block to allow)). But I still don't understand why did it work for all past days and suddenly stopped working since y'day? I have confirmed that no change in the security policy/ firewall settings/ network settings was done. And I must do further research to bring the settings back to default/ recommended value. I will update the thread once I get any lead, please share your views if you know anything about it.

    Regards,

    Abhinay

  • Community Member Profile Picture
    Community Member on at

    Hi Abhinay,

    Am not sure what happened to the firewall.

    I got a similar issue before even the port number is enabled by default. I think you may need to ask the Server administrator guys what it happened:)

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