In the Linksys RE6400 setup, the Linksys product must be taken into account, but the router that the provider uses must be fixed. But your building can also benefit greatly from a mesh router. A mesh can cover an area of up to 2000 square feet. This is made possible by the connection's ability to stream 4000 pieces of content with ease. Mesh is appealing and quick to set up, which draws a lot of users. However, with all of these APs shouting without any rhyme or reason, the radio spectrum in your home is congested. Your end device must determine that a new AP is nearby as you wander since it gets louder and the old one is quieter. Some devices are better at this than others, as you might have discovered.