@bmeeks Thank you for your reply
Yes, using IPS
Aparently, I do have sufficient memory available
dmesg | grep memory
real memory = 8589934592 (8192 MB)
avail memory = 8125104128 (7748 MB)
real memory = 8589934592 (8192 MB)
avail memory = 8125104128 (7748 MB)
Found the option and enabled it.
forced an update of the rules
No more unbound restart, No more unbound errors. Will keep monitoring this for a few days, but given your unambiguous answer, very confident this is solved. Hope some other users will benefit from this to.
Thank you so much for providing this solution. As always, thanks for your time and effort.