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Following are the typical issues you can face during installation :

Issue 1: The tomcat window (after running startup.bat or startup.sh) does not remain open.
Solution: 

• You have not set the JAVA_HOME or is set incorrectly. To set this, refer here.
  OR 
• The Tomcat does not have enough free memory to start. If you run startup.bat from command line, you should see an error like : "Error occurred during initialization of VM. Could not reserve enough space for object heap Could not create the Java virtual machine."
  You need to setup the CATALINA_OPTS variable. To set this, refer here. 

Issue 2: Incorrect login (DB) credentials message even if you are entering them correctly.
Solution : 

1. Try to login to SQL Management Console using the same credentials using SQL Authentication. This is just to verify that the credentials are correct. 
2. If you have created a database instance, then you need to mention that when making the license request.
3. The SQL Server should be installed with SQL Authentication only.
   
   

Issue 3: Error when connecting to your database server when it is not on the same machine where Celoxis is installed.
Solution: 

1. Ensure that the DB host name is correct and accessible from the machine running Celoxis. To verify, open a command prompt on the Celoxis machine and ensure that the command ping host-name
   runs successfully.
2. The DB port is open and accepting connections.
3. In case of SQL Server 2005/2008, the TCP/IP node is enabled. For steps, refer here.
4. In case, you have changed the default port of the database, it should be mentioned in the license request.

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