Which Adobe product are you trying to activate?
Please verify your system time, date and timezone and change it if incorrect.
I'm trying to activate Adobe Digital Editions. Funny thing, installed and activated on my netbook but not on my laptop. No problem with system time, date and timezone.
This error indicates a problem between the time set on your local computer and what the activation computer is expecting. sg77777 I would recommend you download a new copy of the ACSM file for your e-book. If you are still having problems then I would recommend contacting the e-book vendor/provider and request that they reset your link.