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windows 7 installed - setup is:
Dell Inspiron 1521 laptop
AMD 64bit CPU
GIGABYTE Aircruiser N300 GN-WS30N-RH 802.11N b/g/n draft 2.0
Draytek Vigor 2820N router
Everything is setup OK - the problem is WIFI connectivity. Seems to be random connection, it will work OK for about 2-3 days, after reboots and sleep on and off. Then suddenly the Windows 7 will claim not to be able to connect - it can see the router and connection, but everytime you hit "connect" it just returns with " unable to connect". Tried rebooting, running troubleshooter, removing connection and adding again, rebooting router(!) - but none work. I have Ubuntu installed on laptop as well - which connects everytime, even when Windows 7 is claiming not to be able to, so I summise that the "network end of things" is OK, but Windows 7 has decided to stop connecting. Very frustrating.
This also happened with a previous WIFI module installed, exactly the same problem, so it must be Windows 7 issue. I have 2 Win XP, 1 Vista Ultimate laptop WIFI and 1 linux box all using the same router - no problems, even when my Dell is unable to connect.
Any help would be greatly appreciated, as I'm very close to going back to Vista, and giving up on Windows 7.
Which is a shame as Windows 7 is very good otherwise.