Major Service Outage – Vodafone Broadband Interconnect

Update timeline

1. investigating Oct 06, 2026, 10:45 PM UTC

   We are observing an outage on our Vodafone Broadband Interconnect, affecting broadband services delivered through this interconnect. We are in the process of reporting the issue to Vodafone’s service desk. Further updates will follow.

2. investigating Oct 06, 2026, 11:06 PM UTC

   The incident has been raised with Vodafone’s service desk as a Priority 1 (P1) fault under reference FLT13710040 and escalated due to the repeated nature of the fault. We have confirmed that the fault is outside the Exascale network. Our LNS infrastructure is responding as expected, but the Vodafone interface remains hard down. Optical light levels remain steady, indicating a fault at the remote A end within Vodafone’s network site. Our next update will follow at approximately 1:00am BST on 7 October.

3. investigating Oct 07, 2026, 12:08 AM UTC

   We have not yet received an update from Vodafone’s service desk. We are contacting them now to request an urgent update and will share further information as soon as it becomes available.

4. investigating Oct 07, 2026, 12:16 AM UTC

   Vodafone has provided a new fault reference: NET13709772. The fault has been escalated due to its repeated nature. Vodafone has advised that a further update is expected within 10 minutes, at approximately 1:26am BST on 7 October. We will share further information as soon as it is received.

5. investigating Oct 07, 2026, 12:41 AM UTC

   Vodafone has advised that they are currently assigning an engineer to attend the MCR11 and MCR12 network sites. The engineer will check equipment, cabling, SFP optical modules and chassis line cards as part of the investigation. We will provide a further update as soon as more information is available.

6. investigating Oct 07, 2026, 02:36 AM UTC

   Vodafone reports that the affected circuit remains down. Field engineers are assigned to attend both ends of the circuit to check patch cabling, replace the optical transceivers (XFPs) and, if required, change the ports. Vodafone has advised that its next update is expected at 4:00am BST on 7 October.

7. investigating Oct 07, 2026, 04:42 AM UTC

   In its latest update, sent at 4:14am BST on 7 October, Vodafone advised that both field engineers were still travelling to the affected network sites and that the circuit remained down. The engineers are to confirm their arrival and begin their checks in coordination with Vodafone’s network engineers. Vodafone has not confirmed service restoration.

8. investigating Oct 07, 2026, 05:58 AM UTC

   In its latest update, sent at 5:51am BST on 7 October, Vodafone confirmed that an engineer had arrived at one of the affected network sites. A replacement engineer has been assigned to the other site, where Vodafone is arranging access. The circuit remained down, and Vodafone has not confirmed service restoration.

9. monitoring Oct 07, 2026, 06:27 AM UTC

   Service appears to have recovered. Our checks show that the Vodafone interface and BGP session are back up and have remained up for 37 minutes as of 7:25am BST on 7 October. The incident has been moved to monitoring while we await further updates from Vodafone.

10. resolved Oct 07, 2026, 06:31 AM UTC

    Vodafone has confirmed that its engineers replaced an SFP optical transceiver, clearing the alarms, and that services are operating within normal ranges. Following this confirmation and our earlier interface and BGP recovery checks, this incident is now resolved. We apologise for the disruption.

11. postmortem Oct 09, 2026, 03:03 PM UTC

    Reason for outage – supplier findings Vodafone confirmed on 9 October 2026 that the outage was caused by a faulty SFP optical transceiver at its MCR11 network site. The transceiver was replaced and service was restored. Vodafone also installed an optical attenuator as a precaution to prevent potential transceiver damage from high receive power. Vodafone has not confirmed that high receive power caused the failure. We will continue to monitor the interconnect and report any further issues promptly. We have requested a formal RFO report from Vodafone, including clarification on the repeat nature of the fault and measures to prevent a recurrence. The incident remains resolved.