It is generally advised against placing a router in the meter cupboard. Here are a few reasons why:

1. Interference: The meter cupboard can be filled with electrical devices such as the power meter, switches, and wiring. These devices can cause electromagnetic interference, which may affect the signal strength and the performance of the router. It can result in a weaker Wi-Fi signal and reduced speeds.

2. Signal Blockage: The meter cupboard is often made of metal materials, such as steel or concrete. These materials can block or weaken the Wi-Fi signal. This can result in poor coverage and limited connectivity in other areas of the house.

3. Heat and Ventilation: The meter cupboard can be a small, enclosed space with limited ventilation. Routers can generate heat during normal use. If the router is placed in the meter cupboard, this can lead to a buildup of heat, affecting the lifespan and performance of the router.

4. Accessibility: Placing the router in the meter cupboard can hinder accessibility. This can be problematic when you need to reset the router, change settings, or connect devices via cables. It is more convenient to place the router in a location where you can easily access it.

In general, it is recommended to place the router in a central location in the house, preferably at a higher position and away from potential sources of interference. This can help achieve better coverage and performance of the Wi-Fi signal throughout your home.