I have downloaded and installed the GCE v4.2.4 and configured it using the instructions provided here: https://www.greenbone.net/en/install_use_gce/ and installed it on a Vmware ESXi 6.7 server.
Using the most basic settings, all scan tasks result in empty reports. It looks like no NVT tests are being run. I have tried multiple Alive Tests to no avail. I have tried the CVE scanner to n avail.
if I log into the shell of the virtual appliance, a basic nmap -sn ping scan succeeds showing hosts that are alive on the network.
If I look at /var/log/openvas/openvassd.messages, it shows “Testing” and “Finished testing” messages for the hosts on my network and demonstrates it is resolving the host names properly. Near the bottom of the log message, it shows “Client not present” so I wonder if that is a hint of the root cause?