I'm having the same problem.
I installed Win7 RC 32-bit on a formatted HDD. Shortly afterward I purchased and installed my 1st router (DIR-615, H/W =C1, F/W =3.01) and adapter (DWA130, H/W =C1, F/W =1.20). I used the install CD wizard to install the router 1st and left every setting at default except firewall enabled SPI and ping response is disabled.
I next installed the adapter using the provided CD and again used the wizard and left all settings at default. The internet connected immediately, but I am experiencing numerous drops in connection. Win7 displays its own wizard and resets the adapter. This happens a few times every day. Both the router and the adapter sit on my desktop and I have no other 2.4 GHz devices in my home. I also tried to update to the version 3.10 driver, and I'm having no luck. I completely uninstall the existing version 3.01 from device manager and attempt to run the newly downloaded update, but when I am prompted to install the adapter my PC does not find it. It continues to prompt me to plug in the adapter and won't recognize that anything is plugged in. Any ideas?
Thanks!