The OSMU works in Browser/Server (B/S) mode, in order to manage and maintain devices in the ATAE cluster system, when trying to login to the system, the verification code image on the login window was not showing or visible (red cross was showing), making it impossible to login to the OSMU.
Steps taken to resolve the issue
1. Check if internet explorer settings are as product requirements
2. Use another web browser to see if same issue persist
After checking with different browser and found that the issue persist.
To resolve this issue had to login to the OSMU server using PUTTY, stop and start the services again (rcosmu restart), wait until all service starts. can check the services if they are all running by executing this command (rcosmu status), if all OSMU service are running login to the browser again, the verification code will then show.