Hi! I still have many problems with my D235 video doorbell. I installed the 1.1.19 firmware some months ago, but issues are still there! Any help? - Recorded Videos cannot be played back - stuttering

I've 2 D235 and this has happened to both a few times. Both same revision and same firmware They'll be working away and then one day all the recordings can't been seen it just says "No recordings" . I

I bought 7 (!!!) of Deco P7 2 years ago. The first year everything worked really well. But about a year ago I am having CONSTANT troubles. Some decos suddenly disconnect and devices dont get IPs anymo