---
title: "Wi-Fi repeaters"
description: "Symptoms: - The controllers periodically go offline. - There are delays in carrying out commands. - Problems arise once a signal booster (repeater) is installed. - Some devices are experiencing connectivity issues despite a strong Wi-Fi signal. Possible causes: -…"
url: "https://faq.blebox.eu/en/docs/wi-fi-repeaters/"
updated: "2026-09-23"
category: The most common network problems
---

# Wi-Fi repeaters

Symptoms:

- The controllers periodically go offline.
- There are delays in carrying out commands.
- Problems arise once a signal booster (repeater) is installed.
- Some devices are experiencing connectivity issues despite a strong Wi-Fi signal.

Possible causes:

- A repeater retransmits all wireless traffic, which increases latency and network load.
- The devices may switch between router and repeater mode, causing temporary interruptions in communication.
- Some repeaters do not handle multicast or broadcast communication, or IoT devices, correctly.
- The amplifier operates on the same channel as the router, increasing the level of interference and congestion on the radio spectrum.
- Cheap repeaters often have limited performance and struggle to cope with a larger number of devices.

Suggested solutions:

1. Where possible, use an additional access point connected to the network via a cable instead of a repeater.
2. If you are using a mesh system, ensure that the devices have a stable connection to the nearest node.
3. Check that the repeater has the latest software.
4. Limit the number of devices using the repeater.
5. Check the quality of the connection between the repeater and the main router.

Note for the installer:
We do not recommend using Wi-Fi repeaters in building automation installations. Although they improve coverage, they often introduce additional delays, increase the number of retransmissions and may cause communication problems with IoT devices. A far better solution is to use an additional access point connected to the network via a wired connection or a well-configured mesh system. This makes the network more stable, predictable and less prone to communication issues.