RN2304 Failed to update Antivirus

I have this problem too

FW 6.10.5 Hotfix 1 is running (=latest update), before I had never a problem till 28 aug 2021, the he stopped with update.

1) NAS is restarted already.

2) I can ping 8.8.8.8 from cli by ssh on the NAS

From cli:

root@READYNAS:~# freshclam
ClamAV update process started at Sat Oct 30 19:41:23 2021
WARNING: Your ClamAV installation is OUTDATED!
WARNING: Local version: 0.100.2 Recommended version: 0.103.3 --> really old, thers is a new version
DON'T PANIC! Read https://www.clamav.net/documents/upgrading-clamav
main.cld is up to date (version: 62, sigs: 6647427, f-level: 90, builder: sigmgr)
WARNING: getpatch: Can't download daily-26337.cdiff from database.clamav.net
WARNING: getpatch: Can't download daily-26337.cdiff from database.clamav.net
WARNING: getpatch: Can't download daily-26337.cdiff from database.clamav.net
WARNING: getpatch: Can't download daily-26337.cdiff from database.clamav.net
WARNING: getpatch: Can't download daily-26337.cdiff from database.clamav.net
WARNING: Incremental update failed, trying to download daily.cvd
connect_error: getsockopt(SO_ERROR): fd=4 error=101: Network is unreachable
Can't connect to port 80 of host database.clamav.net (IP: 2606:4700::6810:db54)
Trying host database.clamav.net (2606:4700::6810:da54)...
connect_error: getsockopt(SO_ERROR): fd=4 error=101: Network is unreachable
Can't connect to port 80 of host database.clamav.net (IP: 2606:4700::6810:da54)
WARNING: Can't download daily.cvd from database.clamav.net

WARNING: Local version: 0.100.2 Recommended version: 0.103.3 --> Does Netgear do an update or do we need remove it and install the latest version from:  ClamAVNet?

I'm a happy Netgaer user and using this NAS for many many years with some past issues what I have solved by myself.

And now he is still up and running :) 

Please advise?

Many many  thanks