Range of D-Link Router

1. Use a small directional antenna at the wireless access point and direct the pattern toward the desired area of coverage.

1. Add a second wireless access point in the area of weak signal.

2. use a repeater between the weak area and your existing wireless access point.

It seems like almost everyone that has installed a wireless LAN in there home / office / apartment is not real satisfied with the range (or lack thereof). That low power signal just don't carry thru walls and floors very well.