CNS Unplanned Outage
Historic - 13:20, 5th May 2026 - 15:30, 5th May 2026
CNS Unplanned Outage – Resolved
We are now seeing responses back within a minute.
If your declaration is stuck on submitted please do not try to resubmit.
If your declaration is showing a communication error please resubmit the declaration.
Received from ASM at 1522
CNS Unplanned Outage
Users are reporting disruption via CNS.
This first started on Tuesday 05th May 2026 at 14:20 BST.
If your declaration is stuck on submitted please do not re-send unless ASM advise to do so.
If your declaration has a communication error please re-send.
For updates, please check ASM’s service availability page here.








