Error getting License. License Server Communication Problem: E_ACT_NOT_READY

[rjrose]

I just changed laptops OS X 10.10 Macbook Air to Macbook Pro.  Digital Editions used to work perfectly.  Now when I double click the acsm file DE opens, but I get an unable to download error

Error getting License. License Server Communication Problem:

E_ACT_NOT_READY

[rjrose]

I was able to resolve this.

The solution that worked for me was to find the activation.dat file in the Library/Application Support/Adobe/Digital Editions folder and drag it to the Trash.  Then I was able to deauthorize the computer in ADE (either Help>Erase Authorization or Command-Shift-D while ADE is open) and reauthorize computer ( Help>Erase Authorize Computer).

General comment to Adobe:  Your customers do change computers.  EVERY Adobe program (Lightroom CC, Photoshop CC and ADE) was a PITA to bring up on the new machine.  Adobe is the worst; almost all other programs came up with little or no problem; at the worst reentry of a serial number of password.  Only Adobe required IT technical support, digging around in the Library folder, and trips to the forum.

[Jith Paul]

I wasn't able to find the activation.dat file in the location you mentioned but I did find it in /Users/<user>/Library/Application Support/Adobe/Digital Editions and moving it to Trash and reauthorizing my computer fixed this error.  Thanks for the pointer to the trick, rjrose. Error getting License. License Server Communication Problem: E_ACT_NOT_READY​