Posted by Nick Claxson on 23 March 2020 01:29 PM

Dear Customers, Partners & Suppliers,

At Comtec Enterprises Limited, we are taking all necessary steps to continue to protect the safety and health of our employees and our customers. As such, we have put measures in place to ensure the safe continuation of our business operations.

As the UK continues to work its way through a number of steps which is likely to include various stages of full or partial lockdown, our key staff are working at home to provide remote telephone and online support to our customers and partners.

Our IT systems and infrastructure are both robust and adaptable to cope with significant and disruptive events. All our support staff are well equipped to work from home. and if required, can deploy technology to assist you with your requirements.   

If you need support, please contact us as usual on our Network operation Centre which will continue to run 24 x 7 x 365, throughout this and the service desk has a reduced onsite head count with the ability to fully remote work should the need arise.

We are all in this together. We will continue to monitor the COVID-19 situation and will follow guidance from public health officials and government agencies, so we can continue to support our customers and partners as needed.

Nick Claxson
Managing Director 

Read more »

Issue on BT Network
Posted by Nick Claxson on 14 November 2019 01:44 PM
Please be aware that the BT network has experienced reachability issues this morning and whilst BT are working to resolve these issues, ourselves along with a  number of other providers have noted this has affected some clients using certain aspects of BT network.

This has generally been reported as VPN connectivity issues as well as impacted voice service. We expect these issues to be resolved as BT restore their service.
Read more »

UPS Battery Compliance
Posted by Nick Claxson on 16 October 2019 06:20 PM

From the sealed lead acid batteries in most of our UPSs to the lithium ion batteries in our mobile battery packs, many APC products contain batteries. The following information will help you manage the complex regulations that apply to batteries. Contact our Support Team if you require additional information.

Safety Data Sheets (SDSs) - SDS documents (formerly referred to as MSDS) contain safety information about materials, their physical, chemical and toxicological properties, applicable regulatory information, and recommendations to ensure their safe handling. Below are links to the SDSs for APC battery products.

APC is providing battery SDS and the following battery product information sheets as a service to its customers. The products addressed in these information sheets are generally viewed as “articles” that are exempt from requirements for Safety Data Sheets such as the Hazard Communication Standard of the U.S. Occupational Safety and Health Administration and similar requirements in other countries. In particular, these products are manufactured according to a specific design, have an end-use dependent upon such design, and do not normally release more than trace amounts of hazardous chemicals.

Material Content – regulations, such as the EU Revised Battery Directive 2006/66/EC and Amendment 2013/56/EU and the Brazil CONAMA Battery resolution, limit the concentration of certain substances in batteries. APC only authorizes the use of batteries that meet these limits. APC conducts destructive and non-destructive analyses on samples of incoming batteries to confirm supplier declarations. Applicable certifications and test reports are available upon request.

  • Mercury (Hg) content less than : 5 ppm or 0.0005 % by weight
  • Cadmium (Cd) content less than : 20 ppm or 0.0020 % by weight
  • Lead (Pb) content less than : 40 ppm or 0.0040 % by weight (not including battery chemistry)

Safe Packaging and Shipping – Batteries are regulated as Dangerous Goods under the IATA Dangerous Goods Regulations.  APC designs our battery products and their packaging to ensure that they are safe to transport.  For more information see our safe packaging and shipping instructions.
APC battery products associated marketing materials include statements that batteries must be recycled. In addition, we provide a process for the safe return and recycling of batteries. Typically, this includes providing locations where spent batteries can be sent or dropped off and then sent at our expense to responsible battery recyclers. Please note that local rules limit or define the level of battery recycling service that APC can provide. For more information, see our Product Recycling.

Read more »


Schneider have published an answer to the above question here:


To summarise, They DO NOT use them.

Read more »

[Core Network] Service Alert 5th February 2019
Posted by David Croft on 05 February 2019 12:37 PM
This is an incident notification regarding an outage on our core network.

Date: Tuesday, 5th February 2019
Start time: 11:00 GMT
End time: 11:13 GMT

Services affected:

Internet connectivity (external)


During this window packet loss and high latency were experienced to
multiple destinations by ISPs worldwide.

The root cause was multiple device failures at Tier 1 network service
provider CenturyLink.

The impact of this outage was not limited to our network and ISPs
worldwide were affected during reconvergence.

Connectivity to IP Voice services and directly peered networks was not impacted.

External notes appear below.


David Croft

02/05/2019 11:49:06 GMT - The IP NOC has engaged an equipment vendor,
Tier III Technical Support, and Operations Engineering to investigate
multiple devices that went down. Stability is being validated after
most of the devices recovered without any intervention.

02/05/2019 11:19:42 GMT - On February 05, 2018 at 11:00 GMT,
CenturyLink identified a service impact in between in all markets
network wide. The IP NOC is engaged and currently investigating the
suspected equipment issue. Please be advised that updates for this
event will be relayed at a minimum of hourly unless otherwise noted.
The information conveyed hereafter is associated to live
troubleshooting effort and as the discovery process evolves through to
service resolution, ticket closure, or post incident review, details
may evolve.
Read more »

[Core Network] Informational Notice 18th December 2018 - Barclays - Update 1
Posted by David Croft on 19 December 2018 11:31 AM
This issue was resolved at 20:00 last night by Barclays rerouting
their network traffic.

Customers should now be able to successfully access


David Croft

On Tue, 18 Dec 2018 at 16:31, David Croft <david.croft at> wrote:
> A number of customers have reported an inability to access
> since the weekend
> We have conclusively proved that there is no issue on our network,
> even going as far as to packet capture at all of our border routers
> which has verified that absolutely no response is being received from
> to the TCP SYN packets which initiate the connection.
> We have been in contact with Barclays's DDoS protection provider
> Akamai/Prolexic who, while unable to divulge the exact problem due to
> the nature of their business, have also absolutely confirmed that the
> issue is not on their network but with Barclays.
> We have reached out to Barclays through multiple channels in an
> attempt to reach an network engineer in the correct department to
> diagnose and fix this problem however as yet they have not been
> responsive.
> Regards
> David Croft
> --
> For urgent operational issues please always contact noc at
> or 0845 899 1423 and not any named individual.
Read more »