Remote Filesystem Symlinks
Solution 1:
From Kaspersky:
If the encryption module is installed on a workstation, then upon clicking a symbolic link to a network resource the operating system displays the message: Device is not ready.
Beyond that, I've seen this issue when using an external drive as the target of the link, but have yet to determine why.
You might consider using DFS as an alternative, although I personally don't like that it hides the true location of the files. Makes troubleshooting a real pain. Depending on the layout of the drive E, you might also consider using a mount point and see what happens.