Help! I am at my wits end!
I purchased 7 cameras from a Chinese seller back in June of 2014, and all were working fine. Recently I upgraded the firmware on 6 out of 7 from 5.1.6_140412 to 5.2.0 from this forum https://www.ipcamtalk.com/showthread.php/1078-Firmware-5-2-0-in-English
All worked...