I just purchased the SD22404T-GN, and when I first added it to Blue Iris, all of the PTZ controls function properly, as well as the presets, but after about 15 minutes the PTZ controls will not respond, but the video still displays. Additionally, in the first 15 minutes I can log into the camera via the IP address, but after that, it quits responding as well. It will reset after I power cycle it, by removing the network cable and plugging it back in, but quits responding again after about 15 minutes. Video still works fine, even when the PTZ quits responding.
Solid copper wire wasn't used.
RJ45 crimps are iffy.
Power supply isn't up to snuff.
Make sure you don't have an IP conflict.
Reset the camera to factory defaults.
Delete cam from Blue Iris, Re-add by using find inspect.