HomeKit No Repsonse for 3 months

I have already received replacement equipment and now here we go again. my Eufycams (All 4 of them) are now showing no response in the Apple Home app. The cameras show fine in the Eufy app. I bought these for them to work with HomeKit. These cameras have consistently given me problems even after replacement. They work fine for awhile then they just stop. Disconnecting and reconnecting. Removing form HomeKit etc does nothing. I have lost faith in the product as it is completely unrealizable as a security system to work with HomeKit.