GVM and openvas feed update

Hello,
after having a post in greenbone forum regarding this issue (https://community.greenbone.net/t/st...ed-update/9644) i hope to find some helpfull information here.

I was able to use gvm/openvas for a long time but at one day the feeds did no longer update.

We found out that the rsync had a "connection refused":

rsync: [Receiver] failed to connect to FEEDSERVER (45.135.106.142): Connection refused (111)
rsync: [Receiver] failed to connect to FEEDSERVER(2a0e:6b40:20:106:20c:29ff:fe67:cbb5): Network is unreachable (101)
rsync error: error in socket IO (code 10) at clientserver.c(137) [Receiver=3.2.3]

I tested with IPv6 only, directly behind the router and much more, documented in the above link.

Even a fresh install could not solve the problem.

There's one hint regarding an old issue with rsync -> https://community.greenbone.net/t/24...you-rsync/8382

My setup should be up to date:

Operating System: Kali GNU/Linux Rolling
Kernel: Linux 5.10.0-kali9-amd64
Architecture: x86-64

I could not find out if the above mentioned bug is fixed in this kernel?
--> https://lore.kernel.org/netdev/87eel...32b8e87083d75a

So i am looking for any helpfull input, as currently i am not able to use gvm on kali :-(