When the sky rumbles, it is not only the roofs or the trees that are threatened. Within homes, electronic devices become also vulnerable, sometimes without any visible sign betraying the danger. The question of unplugging your internet box during a thunderstorm then insistently comes up, between inherited common sense and technical realities much more complex than it seems.
Internet boxes are among the most exposed equipment, as it is permanently connected to the electrical network, and often to the telephone or coaxial network. As Engie reminds us, the dwellings located in rural or mountains, where the airlines are still frequent, are particularly vulnerable. In these areas, lightning is more likely to get in touch with an exposed metal infrastructure, causing an electric shock wave throughout the accommodation.
Why disconnect your internet box during a thunderstorm remains recommended despite the fiber
Technological progress does not remove all risks. The massive arrival of optical fiber has made it possible to considerably reduce the damage linked to overvoltages, because the plastic cables which compose it do not lead electricity such as the copper of the ADSL. However, this is not enough to completely dismiss the danger. As Numerama points out, if the fiber boxes are less sensitive than those connected to a copper wire, the weak point remains the electrical outlet itself.
Even with a modern box, lightning can cause overvoltage through the mains supply, which is enough to damage the equipment. The operator Orange, quoted by RTL, also reminds its customers in its alert messages. Without suitable protection, a livebox can stop working after a thunderstorm, resulting in loss of internet connection and telephone. The recommendation therefore remains simple: in case of intense thunderstorm, it is better to disconnect, including connection cables which could serve as a relay to electricity.
The SFR site adds to this point by explaining that fragile electronic components, such as those of boxes or televisions, are not designed to support such excess tension. Even if cases of damage are rare, the consequences can be expensive to replace or repair.
Technical solutions that protect without disconnecting everything
If the idea of running after each grip at the slightest rumble of thunder seems exaggerated, there are reliable alternatives to protect your equipment without disconnecting everything. The first consists in using a multi -ad equipped with a arbitration. This small case absorbs excess tension and redirects them to the earth, preventing them from reaching connected devices. This solution appears to be one of the simplest and the most effective to set up, especially for those who need to stay connected during a weather alert.
For reinforced protection, Engie also recommends checking the quality of the landing of your accommodation. A system of arranging to the electrical panel makes it possible to secure the entire installation, especially in regions where thunderstorms are frequent. The installation of a lightning rod can also be envisaged, although it remains expensive and often reserved for large buildings or isolated homes.
In short, the storm should not paralyze our digital uses, but it invites to adopt common sense measures. Disconnect your internet box during a thunderstorm remains a valid precaution, especially if you live in an exposed area. But with some well -chosen equipment, it is possible to reconcile security and comfort without fear of each thunderclap.

With an unwavering passion for local news, Christopher leads our editorial team with integrity and dedication. With over 20 years’ experience, he is the backbone of Wouldsayso, ensuring that we stay true to our mission to inform.




