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Unplanned downtime

OUTAGE: overnight works

RESOLVED: the fibre break was fixed at 8:53pm last night and all services are back to normal. This ticket is now closed.

UPDATE 15:50 — our supplier advises “in relation to the issue identified in Cambridge area regarding loss of service. We are still working hard to resolve these issues as a priority.

Due to heavy traffic in the area, this is impacting our ability to get into the pit location necessary to move services onto spare fibres. Traffic management is required to safely carry out the work and this cannot be implemented until 20:00 this evening due to local authority restrictions.

From 20:00 onwards we can commence repairs so we should see services begin to come back online overnight this evening.

Please accept our apologies at this time as we are treating this matter with the utmost urgency.”

UPDATE: 14:45pm — because of the amount of splicing work needed and the traffic management problems at this location, the ERT has been pushed out to 20.45 today.

UPDATE: 13:00pm — Traffic management is only permitted until 1530Hrs but traffic lights and barriers are on site ready to go. We’ve not been advised of a new ERT as yet.

UPDATE 12:30pm — work continues on-site at the node. Raised for traffic management. Has ERT for 15 minutes time but engineer still working and waiting for response from traffic management team.

Next update due at 1300Hrs.

UPDATE 10:31am — at 1008Hrs an engineer arrived on site. The overnight change was moving to new cable but there appears to be a fibre break. No ERT at present.

UPDATE 10:11am — this is now being treated as a high priority fault as completion has overrun and classified as a MSO due to the affect on Merula (and other) customers through this node.

UPDATE: we are escalating this for a substantive update as the works have again over-run their new completion time.

Emergency unscheduled works by one of our main backhaul suppliers have overrun and mean that one of our 1Gb links to London from the data centre here in Huntingdon is hard down. Traffic is being routed via one of our backhaul links but as this is slower you may see some slowness on some traffic until this work is completed.

We have been told that the work was due to finish at 6am but this has now been pushed out to 8am.  We will continue to update here. Our apologies if this affects your connection(s).

OUTAGE: Network drop 31/1/18

During planned work deemed low risk by a supplier they managed to inject a loop into one of our links. This caused a significant level of packet loss into our network at approx 22:50 on 31st January.
The link was removed from use and service was resumed albeit with reduced resilience.  The issue has been reported to the carrier who have identified a potential problem and resolved this.

OUTAGES: connectivity & latency issues

RESOLVED: 13:14pm

We are not aware of any ongoing issues now and believe that the cause of this problem has been identified and remedial action taken. Once again, apologies to anyone affected this morning.

UPDATE:

We have removed one of the backhaul lines from our network as this appears to be causing routing issues; we are seeing the majority of the affected lines coming back to their normal latency and response times.

We will continue to update here and apologise again for this affecting you at the start of the working week.

We are aware of an as yet unidentified issue affecting large numbers of our circuits leading to slow-downs, poor quality links and high latency. We are working on this now and will update here as soon as we have more information to share. We apologise that this is affecting you on a Monday morning.

UPDATE: Broadband packet loss & intermittent connectivity

UPDATE:

We have seen the services starting to recover and our normal traffic profile is virtually back to normal. Any subscribers still to reconnect may require a router reboot if the issue persists.

The fault is still open with our supplier until the overall service has been restored. Our apologies again to those affected.

+++++++++++++++++++

One of our back-haul providers is aware of an ongoing issue affecting a small section of our lines which is causing either packet loss or intermittent connectivity or sometimes both. NOTE: This isn’t affecting all lines but the following STD codes are those seeing issues through this supplier. We expect an update by 14.30. In the meantime, we apologise if your line is one of those affected.

01171 01173 01179 01200 01214 01282 01372 01483 01485 01512 01513 01514 01515 01517 01518 01519 01527 01553 01604 01628 01905 01932 02010 02011 02030 02031 02032 02033 02034 02035 02070 02071 02072 02073 02074 02075 02076 02077 02078 02079 02080 02081 02082 02083 02084 02085 02086 02087 02088 02089 02311 02380

FIXED: some circuits are affected & currently down 17th Sep 9am

10:23am UPDATE: the supplier reports that the problem has been resolved and we believe that all circuits are now back online. Affected circuits may need to reboot their router to bring their session back on stream.

The following exchanges are affected by this issue since 6.21am this morning.

BT and the supplier engineers are en-route to work on-site. No time to fix yet but we will update here as we hear more.

 

Exchanges affected include Barrow, Buntingford, Bottisham, Burwell, Cambridge, Crafts Hill, Cheveley, Clare, Comberton, Costessey, Cherry Hinton, Cottenham, Dereham, Downham Market, Derdingham, Ely, Fakenham, Fordham Cambs, Feltwell, Fulbourn, Great Chesterford, Girton,Haddenham, Histon, Holt, Halstead, Harston, Kentford, Kings Lynn, Lakenheath, Littleport, Madingley, Melbourne, Mattishall, Norwich North, Rorston, Science Park, Swaffham, Steeple Mordon, Soham, Sawston, Sutton, South Wootton, Swavesey, Teversham, Thaxted, Cambridge Trunk, Trumpington, Terrington St Clements, Tittleshall, Willingham, Waterbeach, Watlington, Watton, Buckden, Crowland, Doddington, Eye, Friday Bridge, Glinton, Huntingdon, Long Sutton, Moulton Chapel, Newton Wisbech, Parson Drove, Papworth St Agnes, Ramsey Hunts, Sawtry, Somersham, St Ives, St Neots, Sutton Bridge, Upwell, Warboys, Werrington, Whittlesey, Woolley, Westwood, Yaxley, Ashwell, Gamlingay and Potton

We are aware some other exchanges may be impacted

Update – we have just started to see some circuits recover but have no update from the carrier as yet

UPDATE: leased lines outage earlier today

RFO 09:40am:

To fix an issue with transient IPv6 and other intermittent routing issues we had seen recently, we were obliged to upgrade the software on one of our core routers. This holds live and backup routes that allow a smooth failover in the case of a single router failing in London. However it now (in an undocumented change from the software supplier) appears with the latest software that the routers set themselves as live on both primary and backup routers – resulting in a routing loop for some IP addresses which had static IP routes originating from this one affected router thus not correctly falling over as previously was the case.

Again, please accept our apologies for this short outage. It shouldn’t have happened.

We are aware of the cause, the problem has now been fixed on this, the one affected router and we have also made sure that all others in the network have been checked and we are confident all are now running properly.

UPDATE 09:27am:

We are aware of the root cause — located at a core switch in our London locations — and are working on bringing this back into service. No ETA yet but we expect this to be resolved shortly. Apologies for the downtime some of you are experiencing.

09:09am We are aware of reports of leased lines down and are investigating. More updates here as we know the cause & ETA to fix.

OUTAGE: leased lines down [resolved]

We apologise but are aware of a number of leased lines that have dropped because of a hardware fault on a core switch in London.

We will have this restarted within the hour and will be replacing this switch with a new one overnight. More status updates will be posted here.

[update] The initial issue was resolved before 6pm and the replacement hardware was installed in London this evening. This is being monitored but we hope this will resolve the issue once and for all

UPDATE: issue fixed: VOIP SIP issues –inbound calls failing

UPDATE:

Divert Service Failures
Details: SIP Diverts are now working as normal and our engineers will closely monitor our VoIP network for any re-occurrences. If you were affected by the issue please retest and if the problem is still present contact our Support Team.

One of our suppliers is aware of a network problem as below. We’ll update here as they troubleshoot this. In the meantime, please accept our apologies if your circuits are affected.

Network Affected: VoIP
Problem Time: Wed 19th Oct 2016 at 9:30 am
Estimate Resolve Time: Wed 19th Oct 2016 at 10:00 am
What Does It Affect: Customers using SIP divert service
Event Overview: Divert Service Failures

Details: Some of our customers may be experiencing problems with our SIP Trunk Divert Service where inbound calls are failing. Our engineers are currently investigating and there will be further updates shortly.

[CLOSED] OUTAGE: VOIP service

[update 17:40]

We believe that all connections have now been restored. If you still have VOIP problems, please raise a ticket in the usual manner.

We apologise for this down-time and are actively investigating alternatives and fail-over solutions as this is the second such outage in a few months.

[update: 16:00]

We understand that services are slowly being restored. This may take some time so please bear with us — we’re in the hands of the external supplier here. Further updates will follow as we get them through from the supplier network.

[update 14:52]

The supplier advises that the incident currently affecting their network is down to a Denial of service attack. They are now working with transit vendors to stop the attack and restore the network. Further updates will follow.

[update at 13:49]

Please be advised that the supplier is continuing to investigate the cause of this issue and apologise to all our customers who are affected by this. Further updates will follow.

We’re aware of issue affecting our core supplier which has dropped all of our VOIP circuits including our own PBX. There is no time to fix yet but we’ll update this ticket as we know more.

RESOLVED: Outage affecting some Merula services inc. ADSL

15:15  The problem has been traced to one of our core routers which ‘hung’ without (as it should have) notifying the automatic monitoring system of problems. This in turn affected routing for some customers connected to our Telehouse data centre. Some other important switches and routers were also impacted as they were unable to see that this router was down and also failed silently.

We have now restored service to the router and are monitoring for any further issues.

This should not have happened but despite our planning it did and we can only apologise for this; we are working on reconfiguring the core layout very shortly to make sure that this can’t cause such cascading problems for our customers again.

13.30 — we believe that we have resolved these service issues. That said, we are monitoring still and looking for the root cause. Again our apologies for this loss of service and updates will continue to be posted here once we’ve had a chance to check logs etc.

UPDATE: we’re working with our link team as this is mainly affecting services out of our London data centres.  Apologies for this extended down-time, we’re all working on this problem and will update here as we know more detail.

We’re aware of and are investigating the cause of outages affecting a number of services inc. some leased lines, ethernet circuits and broadband lines. As soon as we know the root cause & likely time to fix, we’ll update there.

EMERGENCY CONTACTS

The main support number is 0845 330 0666 (geographical 01480 355566)

There’s a second, fallback (geographical) number: 01480 411616. All numbers ring directly at our support centre, manned 24hrs x 365 days a year.

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