When distributing document templates files, network policies can cause documents to be marked as blocked having come from another computer.
You may receive a "Switch to" error or an Error 5981 when producing documents.
Looking at the particular document template and investigating the file properties of the template may indicate the issue:
Unblock before you unzip
If you are unzipping a merge template file, first unblock the zip file before you unzip. This will unblock all the unzipped files.
How to unblock a file
This explains how to unblock.
To Run powershell you will need to be logged in as an administrator.
1. Run powershell
2. type in the powershell window
gci -s "C:\Data\MTDistributed" | Unblock-File
(C:\Data\MTDistributed being the path to where the document templates are stored)
Files are now unblocked
1. It may make it easier to type the command in notepad before copying to power shell.
2. Make sure any document templates aren't open.
3. You may also use the following command line
for /f "tokens=*" %f in ('dir /s /b *.*') do echo.>"%f":Zone.Identifier