Understanding Decrease in Bandwidth: Effects of 2.4 GHz WiFi Repeaters on 300Mbps Networks

A 2.4 GHz repeater reduces the Wi‑Fi link capacity first; it does not automatically cut your 30 Mbps internet line in half, but it can become the bottleneck if its real throughput falls below your ISP speed [#15903745] The quoted 300 Mbps is only a theoretical link rate: under ideal conditions it may behave more like 150 Mbps, and a repeater on that link can reduce it further, even to around 75 Mbps or less [#15903745] In practice, a repeater uses the same radio to receive and retransmit, so it often increases latency and can cut real throughput much more than “half,” especially on crowded 2.4 GHz networks with walls and interference [#15927992] [#15928203] In the thread, a setup showing 300 Mbps still measured only 15–28 Mbps, and sometimes around 10 Mbps, with higher ping [#15927497] [#15927992] So you would usually notice the loss in the Wi‑Fi link quality and sometimes directly in internet speed; with a 30 Mbps connection, a repeater may be enough in theory, but in practice it can still perform worse than expected [#15903745] [#15927497] A wired access point or PLC backhaul was recommended as a more stable solution than a wireless repeater [#15928013]