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Latest Updates
Feb
13
February 12, 2019 1:40PM GMT
Scheduled - Emergency Maintenance - N4Protect Firewall Services – Tuesday 12th February 2019 23:00 - 02:00 GMT

N4Protect is Node4 multitenant next generation firewall service.

On Tuesday 12th February, engineers will perform maintenance on N4Protect firewalls at Wakefield and Northampton datacentres. This is required to resolve an intermittent fault relating to HA synchronisation between the firewall appliances. This fault has led to instabilities in VPN connectivity for a limited number of customers on Friday and Monday.

N4Protect is deployed in a highly available cluster and work will be completed on one appliance at a time, as a result services are expected to failover. However, we are issuing this notification in case of any unexpected impact from this maintenance.

Impact
At Risk – Tuesday 12th February 23:00 – Wednesday 13th 02:00 GMT
No downtime is expected, however services will be considered “At Risk” for the duration of the window.

Updates will be posted to N4Status during this planned maintenance.

Support & Feedback
Our network operations engineers will closely monitor the work and will do everything possible to minimise any inconvenience to you. If you have any problems with your connection after this time, or if you have any questions regarding the maintenance at any point, please call Technical Support at 0845 123 2229 or visit node4.co.uk/support.

While it is important for Node4 to perform maintenance such as this to ensure the quality of our network, we do everything possible to minimise any inconvenience to our customers. We appreciate your patience and welcome any feedback.


February 13, 2019 9:14AM GMT
Active - This maintenance was successfully completed during the maintenance window.

February 13, 2019 9:14AM GMT
Completed - This maintenance was successfully completed during the maintenance window.

Read more »

Feb
8
Line Card Crash - DC4 08/02/19 18:15 - 18:17 UTC
Posted by on 08 February 2019 06:46 PM
February 8, 2019 6:41PM GMT
Monitoring - Our monitoring has alerted us too a line card that has crashed and restarted it self. During this time we saw a convergence event occur, customers may have noticed some loss as the card crashed.

Post incident checks look to report normal service resumed whilst the card was restarting, and full resiliency has been restored now the card is back in service

We are in discussions with vendor TAC regarding the incident.

We apologise for any inconvenience this has caused.

Regards
Node4 Technical Support

February 8, 2019 6:46PM GMT
Investigating - On further inspection, the failed line card is stil showing symptoms of issue's. NHT-MX05 resilient line card looks to be functioning normally.

We are investigating currently.

Regards
Node4 Technical Suport


February 8, 2019 11:05PM GMT
Monitoring - Network Engineers are continuing to engage with vendor TAC following the crash earlier. We have seen no further occurrences and services are fully operational.
While we work to establish root cause we consider the device to be at risk

Further updates will be supplied in due course

February 9, 2019 11:43AM GMT
Monitoring - The Line card has been closely monitored and remained stable over night

Network engineers have supplied crash logs to vendor TAC and are awaiting feedback to determine next steps alongside ongoing supplier investigations

A further update will be available following the outcome of these investigations

Regards
Node4 Technical Support

February 12, 2019 7:27AM GMT
Monitoring - No further issues have been identified. We continue to monitor.

Read more »

Feb
8
Loss of DWDM based services between DC3 and DC4
Posted by on 08 February 2019 05:57 PM
February 8, 2019 5:57PM GMT
Investigating - At 17:23:41 we noted a loss of DWDM based services between DC-3 and DC-4. These services restored at 17:26:24.

Customers with DWDM based services will have seen a drop during this period. MPLS based services immediately re-routed around the failure.

We are in the process of raising this up to the fibre provider for further investigation and further updates will follow.


February 8, 2019 8:04PM GMT
Resolved - Further investigations have determined this incident was caused by the line card crash in our Northampton datacentre (DC4)
This incident will be resolved and all further communications will be posted to the Line Card Crash Incident

Read more »

Jan
31
Northampton Cloud Platform Outage - INC0778894
Posted by on 31 January 2019 10:50 AM
January 31, 2019 10:09AM GMT
Investigating - We have been alerted from monitoring systems and are currently investigating reports of outages linked to the Northampton Cloud Platform.

January 31, 2019 10:18AM GMT
Investigating - This is also effecting the HCS platform in Northampton.

January 31, 2019 10:50AM GMT
Investigating - NODE4 Network teams are still investigating network connectivity issues effecting NHT Cloud/HCS access.

The issue is currently pointing to a connectivity issue to a 7K device in the NHT Data Centre.

Further updates to follow.

January 31, 2019 11:02AM GMT
Monitoring - We believe connectivity to have been restored. Customers are advised to check their environments and if any issues are found then to report them to Technical Support at 0845 123 2229.

January 31, 2019 12:42PM GMT
Resolved - No further issues have been identified during monitoring of the platforms. Root cause is currently being investigated. If any issues are found then please report them to Technical Support at 0845 123 2229.

Read more »

Jan
30
January 29, 2019 3:15PM GMT
Scheduled - As a result of the maintenance taken out on the 24th January 22:00 – 00:00, a further maintenance window was required to restore full resiliency to the Northampton ACI platform.

With assistance from Cisco, NODE4 Network Engineers will be completing this maintenance during the window outlined below:

29th January 22:00 – 02:00 30th January

During this maintenance window there is a risk to platform stability and therefore services should be considered at risk during this period.

Updates will be posted to http://www.n4status.co.uk/ throughout the maintenance window.

Support & Feedback
Our network operations engineers will closely monitor the work and will do everything possible to minimise any inconvenience to you. If you have any problems with your platform after this time, or if you have any questions regarding the maintenance at any point, please call Technical Support at 0845 123 2229 or visit node4.co.uk/support.

While it is important for Node4 to perform maintenance such as this to ensure the quality of our network, we do everything possible to minimise any inconvenience to our customers. We appreciate your patience and welcome any feedback.

Regards,
Node4 Technical Support.

January 29, 2019 10:00PM GMT
Active - NODE4 and Cisco Engineers are on site & online and the emergency maintenance will now commence.

January 29, 2019 10:24PM GMT
Active - Replacement Spine Switch has been added to the fabric. Engineers are currently monitoring for any abnormal activity.

January 29, 2019 10:38PM GMT
Active - No abnormal activity has been discovered during monitoring. Engineers will now work to replace the remaining spine switch by decommissioning the current active switch and installing a new device.

January 29, 2019 11:12PM GMT
Active - The remaining spine switch has been accepted successfully into the fabric as expected. Engineers are now monitoring the devices for any abnormal activity.

January 29, 2019 11:44PM GMT
Active - Replacement successful and no abnormal activity has been discovered during monitoring. Engineers will now work to bring the secondary leaf switch back into the fabric to restore resiliency to the platform.

January 30, 2019 1:11AM GMT
Active - Leaf switch has been brought online and services are now running through the resilient platform. Engineers are now monitoring all services to confirm a successful change.

January 30, 2019 1:34AM GMT
Completed - NODE4 engineers have now completed all final checks and are closing this maintenance as successful. Customers are advised to check their services and should anything be noted as a problem, be raised via our service desk on 0845 123 2229.

Read more »