My $10 eBay Dell DW1703 card has arrived. I uninstalled any Intel Pro wireless software, then went into device manager and uninstalled the wifi and bluetooth intel devices. Shutdown and swapped the cards out. Upon rebooting, Win8 had already installed a generic driver for the Dell DW1703 card. I ran the downloaded dell driver (from the Vostro 2521 support page) and rebooted. So far so good. I don't notice any speed difference copying files or surfing the web, but the amount of time it takes to connect to my wifi router is almost instantaneous (the 2230 took a few seconds to find, connect and be connected). Should only take a day to see if I drop any connections, so I'll post back tomorrow or Monday with results.
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