ESP8266 Community Forum

Hello people,
i did small project with ESP-01 and relay board

image here https://prnt.sc/tntr47

and use the code :
https://codeshare.io/5vDMp4

At the beginning I had a problem , that after several seconds ESP was stop to work. After digging in internet I found , that have to solder 3.3v with EN_CH and I did it and the problem was solved in some part.

I have at the moment very strange problem. I can connect via browser and change the status (ON/OFF), only from one of my home devices - my laptop. When i try to load web page from my phone, tablet or any other laptop at the home , i cant load it. Even i have not ping to the device from other devices, but completely successfully i can ping, open and change the relay status from only one device.

What can be a problem ?

browsers don't like if you send the response before they finished to send the request. read the whole request.

I don't think, that this is the problem. I did test only with esp-01 module and no connected to the relay module for hole day and the esp works with no problem at all the time.