MAC Address Filtering is an option that helps you to connect specific devices to your wireless router. Using this feature, you can block or allow a device to access your network. The MAC Address of a device is used to perform the filtering process. In other words, the MAC Address Filtering option will secure your network from being accessed by unknown or unauthorized users. You can also modify the existing MAC Address Filtering settings if required. To change the existing MAC Address Filtering setting of your wireless network, follow the instructions given below to change Mac address filtering on a wireless router. If you’re performing this process, after configuring the MAC Address Filtering settings wrongly, then first, gather the correct MAC Address of all the devices.