This is followup of JBIDE-18819.
Now, the error message suggests user to check internet connection, but as I understand this, getJBossDiscoveryDirectory() could only return null when jboss.discovery.directory.url property is not set (meaning ide-config.properties was loaded, but does not contain jboss.discovery.directory.url for given version of JBT/JBDS). Thus internet is working but something wrong happened on ide-config.propertis side (our side).