af91c418_r_Broadband_Speed___The_Basics__an_affect_your_broadband_speed
[Cause] Wireless
The position of your router/computers and the channel that your wireless network broadcasts on can have a big impact on your wireless signal strength. A poor quality or low strength signal will reduce the speed you're connected to the router and as a result of this, the speed at which you can download data. See How to improve your wireless signal for help with this.
Your Broadband Speed - The Basics
How this can affect your broadband speed