DBaaS Monitor and Application Express are not Accessible on DBaaS After Maintenance or VM Restart (Doc ID 2165355.1)

Last updated on AUGUST 27, 2016

Applies to:

Oracle REST Data Services - Version 3.0.4 and later
Oracle Application Express (formerly HTML DB) - Version 5.0 and later
Oracle Database as a Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

Cannot access the DBaaS Monitor or Application Express or the DBaaS VM page.
https://publicip/apex/pdb1
https://publicip/dbaas_monitor/

It is possible to connect to the EM page. The listener is up, and all other database functionality is available.

Configuration
o ORDS 3.0.4 standalone
o APEX 5.0
o cat /var/opt/oracle/dbcs-version.txt
  >>1.0-1+16.2.1.0.0_160417.1854.x86_64

Other information
o The error occurs regardless of where the URLs are accessed - internal PCs or external options like a mobile phone.
o Restarting the database from the cloud UI had no impact.

Cause

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