Acrobat Pro 2017: The network path was not found
Hello
When our user's try to open a PDF-file from a network path or from a mail attachment, Acrobat Pro 2017 always shows up the following error message:
"There was an error opening this document. The network path was not found"

Enhanced Securtiy is off and protected view is set to off. I found some threads for older Acrobat version, where you have to set a regkey "bProtectedMode" to the current-user hive.
Any idea to solve this problem?
