UCCX 11.5 - Second Node Installation Error "Configuration validation with UCCXSRV failed. Configured first node UCCXSRV is not a first node -is UCCXSRV entered correctly? -is UCCXSRV the correct first node for this node"

To summarize: Make sure if you reset the security password on the Publisher (even if it's right) using the procedure below and then try installing again if you hit this error.

Had a nightmare with this issue (both servers on the LAN).

Verified the security password was correct as it tells you when you try to reset it back to the same old password so then after taking log dumps over the serial port and analysing the logs it said the below which meant there was an issue with the security password.

02/23/2018 01:22:30 IPM|(CAPTURE) head: cannot open `/usr/local/platform/.security/CCMEncryption/keys/encrypted_Dkey.txt' for reading: No such file or directory|<LVL::Debug>

02/23/2018 01:22:30 IPM|(CAPTURE) isftp using password failed (15). Trying sftp using keys.|<LVL::Debug>

02/23/2018 01:22:30 IPM|(CAPTURE) Required file /usr/local/platform/conf/platformConfig.xml not present on first node (active)|<LVL::Debug>

02/23/2018 01:22:30 IPM|(CAPTURE) isftp using password failed (15). Trying sftp using keys.|<LVL::Debug>

Procedure

Step 1	Log in to the system with the following username and password: Username: pwrecovery Password: pwreset The Welcome to platform password reset window appears.
Step 2	Press any key to continue.
Step 3	If you have a CD or DVD in the disk drive, remove it now.
Step 4	Press any key to continue. The system tests to ensure that you removed the CD or DVD from the disk drive.
Step 5	Insert a valid CD or DVD into the disk drive. Note    For this test, you must use a data CD, not a music CD. The system tests to ensure that you have inserted the disk.
Step 6	After the system verifies that you have inserted the disk, you are prompted to enter one of the following options to continue: Enter a to reset the Administrator password. Enter s to reset the security password. Enter q to quit.
Step 7	Enter a new password of the type that you chose.
Step 8	Reenter the new password. The password must contain at least six characters. The system checks the new password for strength. If the password does not pass the strength check, you are prompted to enter a new password.
Step 9	After the system verifies the strength of the new password, the password is reset. You are prompted to press any key to exit the password reset utility.

So used the above procedure to change the Security Password on the Publisher and rebooted the node, then went over the install again and it went through fine (did ask me for "more time") but ultimately went through fine. 

Then tried installing a .cop file to math what's on the publisher and hit the following bug so had to restart the install from the CLI and all good.

Attempted to upgrade the system to ES03 but we ran into the defect:

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvg75481/?reffering_site=dumpcr