Hello,
You can try some solution that described below
1. Log in to AC
2. Open settings -> Notification Settings.
2. To write ip of your AC with prefix http:// and port 8080 or 80 in text box, for example http://10.11.36.213:8080 or http://10.11.36.213:80
3. Save it.
4. Delete Orion source and add it again
For clearly vision I've attached screenshots
Thanks,
Olexandr