--- title: "KPN slow internet in Netherlands: tests, evidence and complaints · Kilobat Guides" url: "https://kilobat.app/guides/kpn-box-slow-internet-complaint" description: "KPN internet slow or dropping out in Netherlands? Check equipment, compare tests, keep evidence and follow the complaint route." --- # KPN slow internet in Netherlands: tests, evidence and complaints If your KPN connection is slow or unreliable, start with these equipment checks. Then document a repeatable result and ask for a specific investigation. Applies to: KPN Box 14, KPN Box 12, Experia Box V10A and V10 with KPN Software (menus as of 2026). MijnKPN app for iOS and Android. The interface is in Dutch; labels are given with an English gloss. · Checked: 3 November 2026 ## When this helps - You use KPN in Netherlands. - Your connection is slower than expected, drops out or performs badly at certain times. ## Check your KPN Box These checks apply to KPN Box. Check the model before following its menus. 1. Look at the **Power** light. Green means all is well; orange means internet, TV or phone isn’t working. 2. Blinking red means the box is syncing and fetching an IP address; steady red means a fault, so restart it. 3. For details, sign in and click **Internetverbinding › Informatie** (Internet connection › Information). 4. Open the **IPv6** tab for the IPv6 connection. ## Separate the service from your home Wi-Fi For the exact settings and supported equipment, see [the KPN Box guide](https://kilobat.app/routers/kpn-box). Do not factory-reset the equipment as a first step. A reset can erase service settings and interrupt phone service. 1. Compare a wired connection to the router with Wi-Fi on the same device. 2. Repeat the same test server during the slowdown and at a quieter time. 3. Record download, upload, latency and whether another household device was using the connection. ## How to complain to KPN Use [KPN’s official support](https://www.kpn.com/service/internet/box-12-handleiding-en-hulp-bij-problemen) to report the fault. Request a formal complaint reference if it remains unresolved. Include the plan wording, dates, test conditions, previous references and the specific outcome you want. Ask for a written response. Check the complaints procedure in your Netherlands service contract before escalating. Use the national regulator’s consumer guidance for your service. ## Collect the evidence with Kilobat On a Mac, Kilobat can record connection checks and produce a support report. Review the report and add your test conditions before sharing. The basic report export is free. [Kilobat Pro’s complaint wizard](https://kilobat.app/internet-complaint) helps assemble your evidence, impact and requested resolution into a draft you review and send. Measurements cover this Mac while monitoring ran. They cannot prove whole-home uptime, establish provider fault or replace a required official measurement procedure. ## Sources - [KPN Kennisbank: Modems met KPN Software, webinterface en instellingen](https://community.kpn.com/kennisbank-modem-instellingen-171/modems-met-kpn-software-webinterface-en-instellingen-593707) - [KPN Kennisbank: KPN Box 14, van specificaties tot instellingen](https://community.kpn.com/kennisbank-modem-specificaties-170/kpn-box-14-van-specificaties-tot-instellingen-600011) - [KPN: Box 14 handleiding en hulp bij inloggen, resetten en meer](https://www.kpn.com/service/internet/box-14-handleiding-en-hulp-bij-problemen) - [KPN: Box 12 handleiding en hulp bij problemen](https://www.kpn.com/service/internet/box-12-handleiding-en-hulp-bij-problemen) - [KPN Kennisbank: Reset het KPN modem (KPN Box / FRITZ!Box)](https://community.kpn.com/kennisbank-modem-specificaties-170/reset-het-kpn-modem-kpn-box-fritz-box-565615) - [KPN Kennisbank: Modems met KPN Software, port forward instellen en UPnP aanzetten](https://community.kpn.com/kennisbank-modem-instellingen-171/modems-met-kpn-software-port-forward-instellen-upnp-aanzetten-593715) - [KPN Kennisbank: Modems met KPN Software, wifi instellingen wijzigen](https://community.kpn.com/kennisbank-modem-instellingen-171/modems-met-kpn-software-wifi-instellingen-wijzigen-615059) - [KPN Kennisbank: Modems met KPN Software, extra wifinetwerk instellen](https://community.kpn.com/kennisbank-modem-instellingen-171/modems-met-kpn-software-extra-wifinetwerk-instellen-met-de-functie-extra-wifi-593709) - [KPN Kennisbank: Modems met KPN Software, gastwifi instellen](https://community.kpn.com/kennisbank-modem-instellingen-171/modems-met-kpn-software-gastwifi-instellen-593710) - [KPN Kennisbank: Modems met KPN Software, DNS instellingen aanpassen](https://community.kpn.com/kennisbank-modem-instellingen-171/modems-met-kpn-software-dns-instellingen-aanpassen-600853) - [KPN Kennisbank: Modems met KPN Software, DHCP binding / vast IP instellen](https://community.kpn.com/kennisbank-modem-instellingen-171/modems-met-kpn-software-dhcp-binding-vast-ip-instellen-593711) - [KPN: Verbonden apparaten bekijken met de MijnKPN app](https://www.kpn.com/service/ugs/verbonden-apparaten-bekijken) Checked on 3 November 2026. ## Related guides - [Internet slower than advertised? Test it before you complain](https://kilobat.app/guides/internet-slower-than-advertised): A low speed test is a starting point. - [Wi-Fi slow but Ethernet fast? Find the wireless bottleneck](https://kilobat.app/guides/wifi-slow-ethernet-fast): If the same device is consistently faster on Ethernet, investigate the wireless path first. - [Slow internet complaint letter: a template with the evidence to attach](https://kilobat.app/guides/broadband-complaint-letter): A useful complaint says what happened, how you tested it and what you want the provider to do next.