Port Conflict in OBIEE 11.1.7.0 Installation

ERROR

Sometimes during installation of OBIEE, there might be an error after entering the Weblogic Password which looks like below

INST-08010: Error in validing the port range for auto port allocation. At Least 2 ports should be free within the range 7500-7500 for the Adminserver and Adminserver SSL


Ensure that a minimum of 2 pors are free within the range 7000-7500 for auto port allocation to work correctly for the Adminserver and
INST - 08010: Error in validating the port range for auto port allocation. At least 3 ports should be free within the range 9500-9699 for the Weblogic Components for BI(WLS Managed Server, Managed Server SSL and NodeManager)


Ensure that a minimum of 3 ports are free within the range 9500-9699 for auto port allocation to work correctly for the Weblogic Components for BI(WLS Managed Server, Managed Server SSL and Nodemanager.

REASON

This occurs due to improper configuration of Hosts file in the below location.

C:\Windows\System32\drivers\etc

RESOLUTION

To resolve this error, make sure that the below two entries are present in the hosts file and are not commented(should not start with #)

127.0.0.1     localhost

127.0.0.1     ComputerName

While trying to edit the Hosts file, open from the Notepad with Administrator Privileges.

1. Start
2. Notepad
3. Right Click -> Run as Administrator
4. File -> Open C:\Windows\System32\drivers\etc\hosts
5. Make the changes
6. Save.

Now try running the OBIEE installer again.