I work in other places, and the house is made of iron, and the signal in the house is very weak. Let me tell you how I strengthened myself. I drew a copper wire from the exhaust fan. This end of the room is directly wrapped with a network card, and the other end is wrapped with a magnet on the roof. There are several points to note here. The copper wire had better be thicker, at least it can stand up. In addition, there is a magnet. The greater the suction, the better. The bigger the volume, the better. There must be magnets, only copper wires are not. And finally the roof. After the copper wire is wound around the magnet, it will leave a section. Bend it into any shape, square, round, spiral. I've already tried it. It's very good. Don't get stuck playing World of Warcraft (I'm a telecom network card). Don't get stuck playing Netcom's next online game accelerator. You can try.