Connectivity changes during the day

Hi, I have 4 doorbells at 3 addresses (and many cameras but let's focus on the doorbells).I live in Sweden and during the morning about 07-13 (about 11PM - 5AM pacific time I think...) the connectivity to my Ring devices are horrible. I can't start (or it takes about 20-30 sec to open) a live view on my doorbell for instance (=answer a call). I have a pretty nice wifi and the problem is at all 3 addresses (unifi network at all locations) so it really feels like a Ring problem during the night??Onyone else seen this pattern? :)