License Server Communication Error

[Whitewoods]

The last two books I have tried downloadingfrom the library into my Adobe Digital Editions, have failed to download and every time I get an error message saying "license server communication error." I've never experienced this problem before, and I am wondering if anyone else has and if so, what I can do about it?

[dtender]

I am new to this program. I also downloaded two books from the library but get the same error message. I'm looking for a solution on the net but couldn't find for about a week. If someone have a solution please share it's urgent.