jara257
Hi,

I am trying to access the WEB SERVER by typing my RaspberryPi hostname on the web browser but im not able to access it, ERROR: ERR_CONNECTION_REFUSED.

A couple of days ago I did manage to access it with the RPI4 but unfortunately that board stopped working, so I have a new RPI3 and using the same sd card Im having this issues. I have already deleted and installed the OPENPLC on Pi but still not working. The only thing that I noticed is that when I reinstalled the program it assigned a different IP from 111 to 110 for the last digits of the IP address. 

I have the Editor running in my PC and I need to download the program to the Pi. 

Thanks for your help
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thiagoralves
Either you have the wrong IP address or OpenPLC is not running on your Pi. If I were you, I wouldn't use a Pi4 SD card on a Pi3. They are based on different architectures. I recommend you to just start fresh. Erase your SD card with a fresh raspbian image, follow the tutorial to install OpenPLC on it and you will be good. It will probably take less time to do that than to troubleshoot your current cumbersome Pi4/Pi3 frankenstein installation.
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jara257
Hi Thiago,

Thanks for the reply. I have done the fresh install of Raspbian by formatting SD card and installing Open PLC. At the beginning it was not running but after a while it started to work. 

Thanks for your help
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