WGR614v7 must reboot to connect

[Markgear]

I have a WGR614v7 router. My computer is a Windows 7 and I connect wirelessly with a wireless adapter. I shut my computer down at night. In the morning when I turn it on, sometimes it connects and sometimes it won't. When it won't connect, resetting my wireless adapter doesn't help. I must restart my router and then it connects without fail. The wireless adapter is set to "connect automatically" which it does half of the time. The other half...I must restart the router. Help...please and thanks.

[jmizoguchi]

shutting down or sleep/hibernation mode as shutting down .

above two different things.