I have had several HDW5231R-ZE working well for years (via BlueIris), quality good. I recently added several new HDW5442T-ZE but the quality is very poor. Looks like low bandwidth video, you know when the video gets badly throttled and looks awful. I am using the same video settings on the old...
Update: Disable VPP fixed this issue
My feeds generally work, but a feed will slowly get delayed, up to around 2 mins, then suddenly be live again and drop 2mins of video. I have memory cards in the cameras and they record this period locally with no issue, so something between Dahua and BI...