i have an esp-1240 in one of my projects. this esp works fine for a while then after a period of 3-4 days or after power off and on the system, it's freezing. and when i try to reach it by CSD hardware manager, the software also freezing. it's start showing just a green light in the power LED with no response or any indication in ethernet LED. i have to downgrade the system using 4.2 CSD to work again, but will do the same issue later. I've checked if there is any IP conflict in the network but everything is fine with the network, also i have two another esp on the same network but it's working fine. so any body can help me to solve this issue?