ARX Connection Issues
Warning: Users cannot open doors until the connection is restored. Investigate immediately.
Severity: Critical
Applies to: ARX lock connections
We are unable to reach the ARX server. Users will not be able to open doors controlled by this system until the connection is restored.
Why does this happen?
- Server offline — The ARX server is powered off or has crashed.
- Network issues — The server cannot be reached over the network.
- Firewall changes — Network firewall rules may be blocking the connection.
How to fix it
Contact your ARX installer to check that:
- The ARX server is powered on and running.
- The server is reachable over the network.
- Firewall rules allow Unloc to connect to the ARX server.
If you're unable to resolve the issue, contact Unloc Support.
Auto-Resolution
This insight resolves automatically when Unloc successfully connects to the ARX server again.
End User Notification
When this issue is detected, end users with keys to the affected lock(s) will see a warning in the Unloc app underneath the open button, plus a more detailed description when opening the door page.

Updated on: 23/01/2026
Thank you!