What if storm Vieno cuts off the Internet connection? DNA’s expert explains how the network is protected – and what you shouldn’t do in case you lose your Internet connection


Storm Vieno is expected to hit most of Finland in the next few days. Gale force winds will increase the risk of power cuts, as the storm may result in trees falling over power lines. But what exactly will happen if this occurs and a consumer notices that their smart device has lost the network connection? DNA provides a unique behind-the-scenes view of its network control centre where preparations are underway to make sure that the Internet works in Finland at a time of crisis.

Image: DNA
Image: DNA

For example, if lightning damages the technology of a base station or a gale force wind knocks over a tree that falls on a power line, DNA will be notified of the network disruption nearly in real-time. This instantly triggers a critical investigation chain: Why is the service not working? Has something broken down and, if so, what? How can the service be restored as quickly as possible?

“Most disruptions are not visible to the customer in any way, shape or form. The component is either automatically repaired almost instantly or manually repaired via a remote connection potentially in less than a minute, e.g. by changing the configuration or switching services to backup routes. In the event of a disruption of the power grid, each base station can work on battery power on average for three hours or longer. Most disruptions can be repaired within this framework,” says the control centre Group Manager Visa Urpelainen.

When a storm hits, it’s important to remain calm 

The DNA Network Control Centre, a.k.a. the control centre, is located in Lahti. Whether it is a question of DNA’s mobile or fixed networks, phone connections or broadband, the control centre is responsible for monitoring the performance of networks and services. The going gets particularly tough when Finland is buffeted by a storm. If a tree falls on a power line causing a temporary disruption in power distribution, it is important that consumers remain calm. 

“Even if your smart device loses the network connection during a storm, you shouldn’t report the issue immediately – purely to prevent a backlog of reports. It is better to wait, keep an eye on the situation and maybe get in touch if the network is not restored once the storm is over. In any case, you can rest assured that we are aware of the issue and hard at work to fix it, even if you are not currently able to make any calls. If you can get through, you can call our hotline to listen to the recorded general disruption update explaining that repairs are underway. We also recommend keeping an eye on the service disruption updates on DNA’s website,” says Urpelainen.

Cooperation between operators has improved

If it appears likely that power companies will be unable to restore power within three hours, the operators will take action to maintain the operation of their networks. For example, it is possible to save battery power by shutting down an individual base station technology. Although this will result in a temporary decrease in mobile data connections, it will ensure the most important thing, i.e. emergency calls getting through. Another critical factor is the coordination of backup power. In this respect, cooperation between the different operators has really improved over the years, according to Urpelainen.

“Roughly 10–15 years ago, each operator would send their own employee to the same location with a backup generator in a trailer. All the cars would be standing there in a line, waiting for a snowplough. Since those days, we have created the Häty team, which makes it possible to manage service disruptions in a more meaningful way through cooperation. Together with the operators, we can arrange that one operator brings a backup generator to one location and another one delivers one to another location. Together, we can ensure that emergency calls work. We are enemies when it comes to sales but best friends during major disruptions,” says Urpelainen with a laugh.

Crisis management model used a few times a year

In the event of a major disruption, DNA works in close cooperation with national and regional operators, emergency response centres, the Finnish Transport and Communications Agency (Traficom), rescue departments, the separate networks maintaining the Krivat system as well as regional subcontractors. The weather forecasts of the Finnish Meteorological Institute are also a great help when making preparations for approaching storms. 

“The control centre’s operations largely comprise ongoing preparations, anticipation and dialogue. We have our own crisis management model, which we use as a kind of a service disruption management prioritisation tool. We need to use it a couple of times a year, in addition to which we also train our operating models all the time to maintain a level of readiness. The whole premise is that we want to serve our customers even at the time of a disruption. The tougher the situation, the better our control centre operates,” says Urpelainen.

DNA Control Centre

  • The national DNA Network Control Centre has been in operation in Lahti for over three decades.
  • Previously, the control centre was maintained by PHP for its own operations. PHP merged with DNA in 2000. DNA made the decision in 2011 to focus all of its network management operations to Lahti. Previously, the operations were divided between Oulu and Lahti.
  • In March 2020, the control centre was divided into three sections to ensure its operational reliability. When the COVID-19 pandemic started, the original Network Control Centre was physically divided between two addresses to isolate their respective staff members from each other. A third group started to work entirely remotely.
  • The DNA Network Control Centre uses a continuous system provided by the state-owned company Erillisverkot. Named Krivat, the system operates outside the public Internet and mobile phone network.
  • The control centre reports to Traficom and works together with the emergency department and, if necessary, the police.
  • Training for storms and other crises takes place all the time. At the centre of it all is the mutual Häty team, established by Traficom in 2013.

Further information for the media: 

Visa Urpelainen, Group Manager at DNA Network Control Centre, tel. +358 44 044 6103, visa.urpelainen@dna.fi

DNA Corporate Communications, tel. +358 44 044 8000, commmunications@dna.fi


Image: DNA
Image: DNA


About DNA Oyj

PL 10
01044 DNA


DNA is one of the leading telecommunications companies in Finland. We want to make our customers' daily lives less complicated. We offer connections, services and devices for homes and workplaces, contributing to the digitalisation of society. DNA's customers are continuously among the world mobile data usage leaders. DNA has about 3.6 million subscriptions in its fixed and mobile communications networks. The company has been awarded numerous times as an excellent employer and family-friendly workplace. In 2020, our total revenue was EUR 934 million and we employ about 1,600 people around Finland. DNA is a part of Telenor Group, a leading telecommunications company across the Nordics. More information: www.dna.fi, Twitter @DNA_fi, Facebook @DNA.fi and LinkedIn @DNA-Oyj.

Subscribe to releases from DNA Oyj

Subscribe to all the latest releases from DNA Oyj by registering your e-mail address below. You can unsubscribe at any time.

Latest releases from DNA Oyj

DNA:s 5G utvidgades till Asikkala, Sastmola, Raseborg och Nystad – befolkningstäckningen överskred 43 procent av finländarna9.7.2021 09:55:00 EEST | Tiedote

De senaste orterna som anslutits till DNA:s 5G-nät är Asikkala, Sastmola, Raseborg och Nystad. Över 43 procent av finländarna bor redan i 5G-nätets område, dvs. nästan 2,4 miljoner människor, på totalt 108 olika orter. Till följd av att 5G blivit allmännare i regionerna har även dess popularitet ökat markant. I juni var två av tre nya smarttelefoner som såldes av DNA redan 5G-telefoner.

DNA's 5G expanded to Asikkala, Merikarvia, Raseborg and Uusikaupunki – population coverage exceeded 43% of Finns9.7.2021 09:55:00 EEST | Press release

The most recent locations connected to DNA's 5G network are Asikkala, Merikarvia, Raseborg and Uusikaupunki. More than 43% of Finns already live in the network area, i.e. nearly 2.4 million people, in a total of 108 locations. With the regional spread of 5G, its popularity has also clearly increased. Of the new smartphones sold by DNA in June, two out of three were already 5G-capable.

DNA:n 5G laajeni Asikkalaan, Merikarvialle, Raaseporiin ja Uuteenkaupunkiin – väestöpeitto ylitti 43 % suomalaisista9.7.2021 09:55:00 EEST | Tiedote

Tuoreimmat DNA:n 5G-verkkoon liitetyt paikkakunnat ovat Asikkala, Merikarvia, Raasepori ja Uusikaupunki. Verkon alueella asuu jo yli 43 % suomalaisista, eli lähes 2,4 miljoonaa ihmistä, yhteensä 108 eri paikkakunnalla. 5G:n alueellisen yleistymisen myötä myös sen suosio on selvästi kasvanut. Kesäkuussa DNA:n myymistä uusista älypuhelimista jo kaksi kolmesta oli 5G-kykyisiä.

Onko 9%&GR turvallinen salasana? DNA:n tietoturva-asiantuntija muistuttaa hyvän salasanan rakenteesta – ja kertoo miten turvaat omat tiedostosi6.7.2021 09:00:00 EEST | Tiedote

Yleinen harhakäsitys on, että salasanan pitäisi näyttää kryptiseltä, jotta se suojaisi. DNA:n tietoturva-asiantuntijan mukaan käsitys on vanhentunut, sillä uudet menetelmät pystyvät purkamaan lyhyitä salasanoja helposti, vaikka ne sisältäisivät erikoismerkkejä epämääräisessä järjestyksessä.

In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.

Visit our pressroom