Hi,
While adding IO server you need to provide the Lan IP(That is machine local IP not the public IP)
Please check the below things:
1.Check if Symantec DLO Web Server service is started.
2. Check if 7080 port is used by some other application.
3. Check if TCP/IP is enabled in the SQL Server Configuration Manager.
4. Check if the instance name of the SQL Server and the instance name present in context.xml of IO Server matches.
5. The default path for context.xml for IO Server is: C:\Program Files\Symantec\Symantec DLO\IOServer\Tomcat\webapps\DLOServer\META-INF\Context.xml
6. If there is a mismatch with the Instance name, then modify the context.xml file with correct instance name and restart the "Symantec DLO Web Server Service" and check the IO Server status.
7. To check the IO Server status, use the URL: http://<IPAddress_of_IO_Server>:<Port>/DLOServer/rest1/operations/status/ Example: http://172.28.16.129:7080/DLOServer/rest1/operations/status/
8. If the issue persists even after following the steps mentioned above, please check if it is a named SQL instance and check if the dynamic port is enabled in firewall. For more details, refer the Administrator's Guide section Symantec DLO Firewall Ports.
Regards,
Santosh.