I have been experiencing the same 30 second "Wait" or "Cancel" window for the last several days.
I checked the list:
Google Chrome verified up to date
Windows 10 Pro OS
32 GB of installed memory
Intel i7
Windows reported "You're up to date"
Speedtest: 231.85 download, 37.34 upload
I don't see any problems here... seems to be a Quickbooks problem
Eye-roll seems appropriate.
