Hello, I'm running Tomato Firmware 1.28.0000 MIPSR2-140 K26 USB AIO on a Netgear WNR3500L v2. The router is located in the cellar and we live on the ground floor. As there is steel in the ceiling/floor the signal strength/quality has always been quite low. But with one Laptop, two smartphones and a printer everything worked quite well. The printer is located in the room above the router and has the best signal, the other clients are being moved around and the maximum distance from the router is about 10m. When I bought the router I modified it to use 2 external 9dB antennas instead of the internal ones. My children got tablets as christmas presents and since then we experience problems also on the other WiFi clients. Very often 2 clients get no connection. If I reboot the router those two devices eventually get a connection, but two others remain disconnected. The image shows a snapshot of the current signal strength and quality. Is there a limitation that limits the number of clients on this router? Are there any settings I could try to improve the situation? Would another router with more antennas help to improve connectivity?