input: 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. [Cause] 
output: Wireless
options: B r o a d b a n d F a u l t s
options: T e l e p h o n e F a u l t s
options: W i r e l e s s
options: W r o n g l y s e t u p m i c r o f i l t e r s
options: B a d w e a t h e r
options: E l e c t r i c a l i n t e r f e r e n c e
options: Y o u r c o m p u t e r