Hello Dojo,

I would like to check if someone can help me with the below Cube app error below:

DMA version: 10.2 CU2

The DMA setup is one failover pair setup.
x.x.x.108 (main IP)
x.x.x.110 (backup IP)
x.x.x.113 (VIP)

Things I have tried.

(1) The error does not occur when I access via the server IP address. Only happens when accessing via localhost.

(2) I am connecting the cube using the connection setting as "auto".

(3) The DMA server does not have HTTPS enabled.

(4) endpoints.txt

(5) connectionSettings.txt

(6) Firewall for port 8004 and

(7) Test Telnet with port 8004 on the server itself. It showed blank screen and after I pressed enter, I got this error.

At the moment I still think the issue lies towards a firewall issue, however, I wanted to check if there are possible missing configuration settings which could be checked to cause this behavior.
Thank you for the help in advance.