Lea,
You also said you have Windows 7 and have your updates set to go at 0300.
On some W-7 units, depending on the "Power Plan" chosen or set up by the OEM,
you can have your check for updates set to check at 0300 but it either does not wake up or checks but doesn't do the actual download until you physically wake up the computer in the morning.
You can click on the Start button and type "Power" in the search box. It will take you to the Power Plan settings, and you will find many different plans plus modifications to the plans.
Do you ever notice a little icon in the taskbar that says updating if you hover your mouse over it?
If you click Start/All Programs and scroll to the bottom you will see the symbol and can click on the Windows update button to manually check for updates, as well as see when the last update was checked/ downloaded.
Are you on a daily or monthly allotment?
How many MB does the 2% you mention amount too.
As William said, you are going to have to isolate to one device at a time for a period of time to determine that the problem is not on your end.
Ron
