Hi sensory, welcome to 7F, and happy new year!
Go to Services, and make sure the WLAN, and WWAN Services
are at least set to manual, and not disabled. They will be at/near the bottom of the window.
You could even try them started. Restart your machine if you make any changes.
You have had this "problem for a week". Can you recall any
changes that might have affected performance?
Have you changed your routine in connecting to your 'Droid?
Can you set the AirDroid service to manual instead of having it run continuously?
Your password may be changing while in Windows, try to set a predefined password
Are you using IE* while in Windows to connect?
In your P.S., when you access your router's configuration page your doing this in Windows?