Fail to deploy OVF due the ThrowableProxy.cause response code 407

Issue

New OVA appliance deployment fails with the following error message:

Failed to deploy OVF package. ThrowableProxy.cause A general system error occurred: Transfer failed: Invalid response code: 407, note that HTTP/s proxy is configured for the transfer.

Solution

Check if the vCenter side proxy is set.

If so, connect to the VAMI (https://<vCenter_IP>:5480), log in and click EDIT under Networking in the Proxy Settings area...

... Disable it (like in the pic below) and SAVE.

Then try again to deploy the OVA. Now it should work.

Once the deployment is complete, remember to re-enable the proxy.

That's it.