1. Confirm that the system date, time, and time zone on your device is correct.
If that checks out, then:
2. Make a new attempt to download the eBook from the vendor that you purchased it from. Avoid trying to initiate the download from an old .acsm file that was previously saved to your computer of device.
As it was over a week since the problem began, the books were showing as expired on the library site they came from. They were down loaded again and worked with no problem. Odd. Thanks for your suggestion - it worked.
Date and time from what? The day and time when you purchase the books or ?