A lot of home/office routers have dual wireless band which actually means they have two wireless radios inside, one transmitting on the 2.4GHz band and one on the 5GHz band. So there will be not enough to use a simple 2.4GHz to fully disable such type of router. You need to disable 5GHz frequencies as well. It also is a Good Quality Multi-functional Wifi 2.4G 5G and Cellphone 3G 4G Jammer ,Adjustable and Built-in Cooling Fan,If you are looking for the easy to use and powerful ability signal blockers? that you are viewing here is suitable for you then.