Check the cause of weak Wi-Fi before buying a booster
Poor Wi-Fi in one room does not automatically mean your fibre package is the problem. Testing the connection near the router and in the affected room can help establish whether an extender, mesh system or wired second router is worth considering.
A weak Wi-Fi signal in one room does not necessarily mean the fibre line or internet package is at fault. Testing the same phone or laptop close to the router and again in the problem area can show whether the issue is limited to one part of the property. South African ISP Afrihost’s home Wi-Fi guidance identifies walls, concrete, tiles, metal surfaces and electrical interference among factors that can reduce wireless coverage. Poor performance close to the router as well as points to a wider connection problem that warrants additional checks.
A room-specific problem points towards Wi-Fi coverage inside the home, and the appropriate equipment depends on where the router signal weakens. A range extender receives the router’s wireless signal and rebroadcasts it into another part of the property, making its location important. TP-Link guidance updated in May 2026 recommends placing an extender roughly halfway between the router and the dead zone, while still within reliable range of the router. An extender placed deep inside the weak area has a poor signal available to relay.
Mesh Wi-Fi serves a different purpose by spreading coverage through several coordinated Wi-Fi points in a property. Google’s current placement guidance advises spacing mesh points through the home while maintaining a reliable connection between each point. Several rooms or floors with weak coverage can make mesh a more suitable option than a single extender, since several points form one network. A mesh system does not repair a fault on the incoming fibre service.
A spare router can also extend wireless coverage when the model supports the required configuration and an Ethernet cable can reach the problem area. TP-Link guidance updated on 4 June 2026 confirms that compatible routers can broadcast Wi-Fi from a wired network connection without replacing the main router. Configuration differs between models, making the manufacturer’s instructions important before network settings are changed. The wired connection also avoids depending on a weak wireless link between the main router and the second device.
A complete loss of internet throughout the property calls for different troubleshooting. Afrihost advises fibre customers to check power to the router and optical network terminal, fibre indicator lights, Ethernet connections and provider network status when service disappears. Those checks deal with a service or equipment fault, not a dead zone confined to one room. Testing where Wi-Fi begins to weaken can narrow the choice between an extender, mesh Wi-Fi or a wired second router before money is spent on extra equipment.
Lynette Spencer
Mariana Balt
Liz Thorne
Naomi Roebert
