Latest Plusnet Hub One Firmware
Sorry for the delay, got a lot of stuff on here at the moment.
As Dave suggested on that linked thread, most of them are simply the routers firewall doing it's job. Hackers will always try but it's good to see the router is stopping them.
However, there is one alarming event that it looks like @RandallFlagg missed 
and that is more of a concern:
| 11:24:11, 10 Jun. | ath00: STA 30:07:4d:e7:c5:d1 IEEE 802.11: WiFi registration failed |
Keep an eye on this. There is an ongoing issue for some of us running the latest software.