Only TCP-SYN Service Ping works


try to compare your current used OpenVAS/GVM components (see Hint: How to compare the current used versions of the OpenVAS/GVM packages with the GVM-9 stable release?) with the GVM-9 (stable, initial release 2017-03-07) ones.

Most likely you’re running outdated components which are affected by a variant of Community feed unusable which got fixed in newer releases.