|Throw it a bit harder then.|
Honestly. if you want a sensible answer to your question then provide some details.
Single or multi-level house? How big?
Where is the router situated?
What type of construction?
What walls/floors are between transmitter & client devices?
Are there other devices such as cordless phones, garage door openers etc that can interfere?
Goin' Fishin' (Some day)