Just wondering.... is both your laptop and router older ones? I know that newer devices are always backwards compatible... but sometimes with limits.
Linksys WRT54G_v6 (Basic 802.11-g router)
Dell Precision M65 - Intel Mobile Core2 Duo dual-core (Centrino Duo) with Intel 3945 802.11a/g Dual band WiFi
- So, mine are both about the vintage
The M65 laptop says it's connected at 54 Mbps and the signal is "Very Good" and sometimes jumps to "Excellent"
The AirPad is reading -70dBm to -65dBm (lower is better). These are both basically on the other side of the house from the router.
Install WiFi Analyzer and switch to Signal Meter view. standing 4 ft away from router in same room gives me perfect -40dBm green on the AirPad. For every 10-20ft of distance and/or another wood/sheetrock wall ... add about -5dBm