Challenger - Notice history

All systems operational

Notice history

Dec 2025

Calls Continuing to Ring
  • Resolved
    UTC
    Resolved
    This incident has been resolved.
  • Monitoring
    UTC
    Monitoring

    Expected performance has resumed across the affected zone and we are seeing service return to normal for those affected accounts. We will continue monitoring for an extended period.

  • Identified
    UTC
    Identified

    Our team have identified the affected services and are working to resolve. Will provide a further update within 20 minutes.

  • Investigating
    UTC
    Investigating

    We're investigating some reports of calls continuing to ring after being picked up by an extension and audio disruption, on some end user accounts. We are seeing traffic flowing normally on most. Our team are investigating with priority. Will provide a further update in 20 minutes.

Multinet - Emergency Maintenance
  • Completed
    December 18, 2025 at 12:00 AMUTC
    Completed
    December 18, 2025 at 12:00 AMUTC
    Maintenance has completed successfully
  • In progress
    December 17, 2025 at 10:00 PMUTC
    In progress
    December 17, 2025 at 10:00 PMUTC
    Maintenance is now in progress
  • Planned
    December 17, 2025 at 10:00 PMUTC
    Planned
    December 17, 2025 at 10:00 PMUTC

    We have been made aware of emergency maintenance required to resolve some ongoing issues.

    During the above window, our suppliers NOC team will be performing an upgrade on our gateways followed by a full restart, there will be a drop in service for SIMs connected whilst this is carried out.


    This will impact the following APNs;
    mm.l2tp
    mm.apn
    mm.static

    No major service impact is expected post maintenance; however, we recommend that you proactively monitor your device connections during the above times.

    In the event of unexpected issues, please contact customersupport@cmc.uk.net or 01244837837

Planned Network Maintenance
  • Completed
    December 04, 2025 at 1:00 AMUTC
    Completed
    December 04, 2025 at 1:00 AMUTC
    Maintenance has completed successfully
  • In progress
    December 04, 2025 at 12:00 AMUTC
    In progress
    December 04, 2025 at 12:00 AMUTC
    Maintenance is now in progress
  • Planned
    December 04, 2025 at 12:00 AMUTC
    Planned
    December 04, 2025 at 12:00 AMUTC

    During this period, the network will carry out resiliency testing. You may experience two brief interruptions in connectivity as traffic moves to a resilient route and then returns to the primary route. No significant disruption is expected, though it may be useful to keep an eye on your device connections during the window.

Nov 2025

CallSwitch - Degraded Performance
  • Resolved
    UTC
    Resolved
    This incident has been resolved.
  • Update
    UTC
    Update

    Traffic continues to return to normal for users on the affected zone and we are seeing dashboard load speeds improve. We will continue to provide updates until confident all services have resumed.

  • Monitoring
    UTC
    Monitoring

    Traffic continues to return to normal for users on the affected zone and we are seeing dashboard load speeds improve. We will continue to provide updates until confident all services have resumed.

  • Identified
    UTC
    Identified

    We have identified the issue, and have implemented a fix and are seeing systems begin to return to normal, however will continue to monitor and provide further updates once we are confident all services have been restored.

  • Update
    UTC
    Update

    We are continuing to investigate the issue. Dashboards are affected for all site visitors, however disruption on voice remains limited to one zone.

  • Update
    UTC
    Update

    Dashboards are also affected in some cases. We are working to restore service to calls with priority.

  • Investigating
    UTC
    Investigating

    Our team are investigating reports of call issues with some accounts on one zone. We will provide a further update within 20 minutes.

Exchange Outage - Doncaster (SLDC)
  • Resolved
    UTC
    Resolved
    This incident has been resolved.
  • Monitoring
    UTC
    Monitoring

    Broadband services are now recovered. If you're still experiencing connectivity issues, please try rebooting your router. Should problems persist, contact our technical support team for further assistance.

  • Update
    UTC
    Update
    We are continuing to work on a fix for this incident.
  • Update
    UTC
    Update

    An engineer is on site and troubleshooting hardware that was affected by complications from earlier planned maintenance.

  • Update
    UTC
    Update
    We are continuing to work on a fix for this incident.
  • Identified
    UTC
    Identified

    Customers connecting to the Doncaster (SLDC) exchange are without a connection. Our engineers are investigating and further updates will be posted here when available.

Oct 2025

No notices reported this month

Oct 2025 to Dec 2025

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