My internet is slower than promised: what can I do in Denmark?
If fixed broadband is sold as 'up to' a speed, at least 80% of the consumers targeted must be able to get it, and a minimum speed must be stated. For mobile broadband, 70% of your outdoor sessions must fall within the stated range.
Your contract states the speeds your provider promises. If the real speed falls clearly and repeatedly below them, you may be able to pay less or end the contract. A measurement with the official tool, where there is one, is the strongest proof.
📜 The rules in Denmark
What you can do
Complain to your provider first. Remedies the authority names include fixing the fault, a proportionate price reduction or ending the contract, even within a binding period. If you disagree with the provider's decision and have a money claim, go to Teleankenævnet.
The details
- Your contract must explain the minimum, normally available, maximum and advertised speeds for fixed internet, and the estimated maximum and advertised speeds for mobile (EU Regulation 2015/2120, art. 4). (digst.dk)
- If TV, phone and internet come over one line, the provider must show with examples how much using several services at once lowers your speed. (forbrug.dk)
- For a fair test on Tjekditnet.dk, connect your computer by cable, switch off Wi-Fi and other devices, and measure several times over several days. (tjekditnet.dk)
- Mobile signal boosters (repeaters) are as a rule illegal to use without an agreement with the mobile company. For better coverage, contact the mobile company. (digst.dk)
Digitaliseringsstyrelsen
Supervises the EU net-neutrality rules, including the speed information in contracts. It does not decide individual complaints but refers them to Teleankenævnet.
Teleankenævnet
Approved consumer complaints board for phone and internet. Complain with its online form once your provider has rejected your written complaint; fee 175 kr., refunded if you win fully or partly.
Official speed test official
Tjekditnet.dk – bredbåndsmåler
No official page says the result counts as proof. The meter is run by Digitaliseringsstyrelsen and measures from your device to the Danish internet exchange (DIX); measure several times over several days, then contact your provider if speed stays too low.
🪜 Step by step
- Find the promised speedsYour contract summary lists the speeds, often as a maximum, a normally available and a minimum speed.
- Measure properlyUse a cable instead of Wi‑Fi, close other devices and measure several times on different days, with the official tool if there is one.
- Report it to the providerSend the results, ask for the problem to be fixed and keep a copy of everything you send and receive.
- Use your rightsIf nothing improves, ask for a lower price or to end the contract, and go to the dispute body if the provider refuses.
📇 Who to contact
Sponsor this page → One labelled block, €100 a month. Founding price €75 until 31 January 2027.
❓ Questions
Does a quick speed test in an app count?
It helps you spot a problem. As proof, a measurement made the way the regulator or your contract describes carries much more weight.
Does this apply to mobile internet too?
Mobile speeds change with place and network load, and the rules for mobile are often different. See the rules for Denmark on this page.
Is slow Wi‑Fi the provider’s fault?
Not always. Walls, distance and old devices slow Wi‑Fi down. Measure with a cable first.
📎 Sources
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