Draytek 3910 - FW 4.4.3.1 

Lots of odd things happening in DHCP table being completely wrong ie. it shows device has an Ip of say 10.0.40.23 but in reality the device is on another subnet and confirmed i am pinging it.
IP Bind list is now completely useless as DHCP allocations are all wrong in DHCP table and causing headaches.

This is a 24/7/365 site and finding times to reboot (done once today) is tough but this most certainly feels related to this firmware which was critical to update for CVEs.

Anyone else ?