http://bugzilla.opensuse.org/show_bug.cgi?id=1188019 http://bugzilla.opensuse.org/show_bug.cgi?id=1188019#c4 --- Comment #4 from Ivan Ivanov <ivan.ivanov@suse.com> --- Hm, my RPi4 start getting sluggish. For me wickedd-dhcp6 was the offending process. I have changed BOOTPROTO to dhcp4, i.e. IPv4 only and performance is back. # journalctl -u wickedd-dhcp6 --since=today | head -- Journal begins at Mon 2021-06-28 00:00:00 UTC, ends at Fri 2021-07-23 06:57:16 UTC. -- Jul 23 00:00:00 localhost wickedd-dhcp6[546]: eth0: ignoring REPLY message xid 0x6750c4 in state SELECTING from fe80::dea6:32ff:fe3c:1825: rapid-commit lease without usable address Jul 23 00:00:00 localhost wickedd-dhcp6[546]: eth0: ignoring REPLY message xid 0x6750c4 in state SELECTING from fe80::dea6:32ff:fe3c:1825: rapid-commit lease without usable address Jul 23 00:00:00 localhost wickedd-dhcp6[546]: eth0: ignoring REPLY message xid 0x6750c4 in state SELECTING from fe80::dea6:32ff:fe3c:1825: rapid-commit lease without usable address -- You are receiving this mail because: You are on the CC list for the bug.