Eufy Floodcam/Floodlight causing wifi to disconnect

We have had stable Wifi for about 3 years until I installed the Eufy floodcam
We have a Huawei H659 router + Ubiquiti AP-AC lite Access point
Eufy cam is on latest firmware as only install 2 weeks ago and it auto updated to latest firmware
I have narrowed it down that after turning on the Eufycam makes all connected clients drop wifi connection (not straight way though -maybe ~ 1-2 hours), and then when they try to reconnect, router cant assign IP address

Wifi only works either after I reboot router and then with the eufy cam, on clients start to drop wifi connection after 1 to 2 hours.

Eufycam has been off for 3 days now and wifi is stable

What gives?

Have you checked into assigning the eufy light a specific address? I regret I do not know more, but I have seen devices that do not always stay put and try to interrupt other devices (weird bug possibly) as it looks for a happy connection. You could try pulling up the router and look at used devices and their addresses, when you get odd drops check the gateway to see if 2 devices are on the same slot. More information will probably help you to better diagnose this.