We ran into this problem twice within the last two weeks. When restoring from a backup, the file ignition.conf located (in Windows Server 2008) in folder C:\Program Files\Inductive Automation\Ignition\data may have the forward slashes (/) or backslashes () (not sure which) removed from the wrapper.java.command:
... # Java Application # Locate the java binary on the system PATH: wrapper.java.command=C:jdk1.7.0_21jrebinjava.exe ...
This means the Ignition Gateway cannot be started. The manual solution to this restore problem is to add in the forward or backslashes:
... # Java Application # Locate the java binary on the system PATH: wrapper.java.command=C:\jdk1.7.0_21\jre\bin\java.exe ...
Ignition Platform 7.5.11 (b1526)
Java Version: Oracle Corporation 1.7.0_25 (client)
Using Java 6 on the server (I think)