A good example to explain interference is when people are talking. The louder someone talks, the more disruptive they can be to other conversations.  The same principle applies with wireless Internet.


Local interference can be caused by baby monitors, wireless speakers, cordless phones, etc.  If it is wireless, it's a good idea to know what frequency it operates on.  The frequency can be seen on the package or product itself. Generally, the format is some number followed by MHz or GHz, example would be 900 MHz or 2.4 GHz.


Because your equipment may operate near these frequencies, there's a good chance it can 'hear' your device better than our tower, since it is closer. This can cause some issues with the service in terms of speed, quality, and reliability.


If you think you may have a device which can cause you problems, leave it unplugged for a day and see if it helps.