Earl,
I'm assuming that you also have an Intel WiFi Link 5100AGN client card on you Sony? As it turns out, the Intel WiFi Link 5100AGN is only capable of 150Mbps when transmitting and 300Mbps for receiving (unfortunately, this data is buried in small fine print of the Intel Specs
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). I just wished that Sony should have been upfront about this spec and would allow us the option to choose the 5300AGN (which is capable of 300Mbps TX/RX) instead, which I would gladly pay for the upgrade.
I think the confusion comes in when Windows is reporting the TX link speed and DLink is also reporting the TX link speed at the router's end (Windows' RX link speed), thus the discrepancies between the two link speed reports (The router versus Windows).
I guessed we'll either have to break open our VAIO and swap out the mini-PCI Wireless N card, or get a USB or ExpressCard Wireless N client card that's capable of supporting bidirectional 300Mbps rates if we want the higher TX rate.