The Wyze RTSP firmware has greatly improved for me. I have had no issues for a while the newer versions are a lot stable. These are pretty cheap, https://www.amazon.com/dp/B00PVCYJ68/ref=cm_sw_em_r_mt_dp_aJcKFbRBPSRH2?_encoding=UTF8&psc=1. Just 720P Old D-Links with RTSP.