Unfortunately the link you provided doesn't give me the download link for the firmware. Which firmware version did you use and can you kindly send me a download link? I would really appreciate it.
There's supposedly a new firmware for the HDW1230S which is DH_IPC-HX1XXX-Eos4_Eng_P_V2.680.0000000.2.R.190410.zip but I can't seem to find it.
According to the Dahua support page, it should be on 07-Firmware / 01.IPC / 03.Lite / 01.IPC-HX1XXX-Eos4 - HDBW1230-S2 on the...