Greenbone-certdata-sync connection refused

when try to sync, it gives this error, however i do wget successfully to google

sudo greenbone-certdata-sync
rsync: failed to connect to ( Connection refused (111)
rsync: failed to connect to (2a01:130:2000:127::d1): Network is unreachable (101)
rsync error: error in socket IO (code 10) at clientserver.c(125) [Receiver=3.1.2]

There are no issues in network

Same as here, please read our announcements:

Closing as a duplicate of the following topics: