We're going to wait and see what happens after 24 hours, then we'll know if they are receiving updates with them both online using the same GUID.
In the mean time, what could this message below mean? We can't find any other references to the NetAgent. Also, we've confirmed that running this tool does not change the GUID in the two places it exist in the registry. We've verified both before the shutdown for sysprep as well as after the first boot when it has already shown up in the AEA. Still the same GUID.
Thanks!
C:\Program Files\AVAST Software\Avast Business>aswimgpr
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avast! Disk Image Prepare Utility, Version 7.0
Copyright (c) 2004 - 2013 AVAST Software
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Warning: avast! NetAgent service is not running...
The system is now ready to be imaged. This is true until the next reboot.
That is, the imaging should be done before rebooting the computer -
otherwise, you'll have to rerun this utility.
After the imaging is complete, please reboot the machine.