There could be a variety of reasons why there are no networks detected. Depending on the type of device being used for network detection, some of the possible causes could include the following:
1. The network signal is insufficient in strength or too weak to be picked up by the device. This could be due to a variety of factors such as physical obstructions (e.g. walls, furniture) between the device and the router, the router’s placement in the home, or even a faulty router antenna.
2. The device being used for network detection is not compatible with the router. Different devices may only support certain frequencies, so if the router is running on a frequency that the device cannot detect, it will not find any networks.
3. The device being used may not be adequately configured to detect networks. Many devices come with the ability to select which specific frequencies to scan for, so it could be the case that the device’s scan settings are restricting it from picking up any networks.
4. The router may be turned off or its wireless broadcasting capabilities have been disabled. If the router is not connected to a power source or its wireless capabilities have been disabled, it will not be detectable.
5. There may be too many networks competing for the same signal in the same area. If there are several routers in close proximity to one another, they can interfere with each other, resulting in none of them being detected.
6. The device being used may have a hardware issue. If all of the above issues are ruled out, then it’s possible that the device is malfunctioning, preventing it from detecting any networks.
In conclusion, there can be a variety of reasons why no networks are detected. Many of these issues can be easily resolved by making sure the device is properly configured and making sure the router is in an optimal position and is enabled properly. However, if all of these steps are taken and there is still no detection, then it’s possible that there is a hardware issue with the device or that there are too many networks competing for the same signal in the area.