Changing Wifi Doesn't Work - It Eventually Reverts Back To Old Wifi Credentials

[Mahonroy]

What is the problem?

I recently set up a new wifi access point with a new SSID name and password. I followed the instructions in the tutorial here to change it to the new one:

WiFi setup and troubleshooting

A number of people who have followed the instructions for setting up OctoPi on your Raspberry Pi experience problems getting connected to WiFi. This thread is intended to detail a couple of common problems people have experienced and things to try to resolve them. This page assumes that your WiFi network is up and working and that other devices are able to connect to it without a problem. We are also assuming that you have already successfully downloaded the OctoPi image and "burned" it on to y…

Basically, it has you put the SD card in your computer, edit the file "octopi-wpa-supplicant.txt", and type in the new SSID and password.

This worked great for a couple of days, but I just now noticed that it somehow changed back to the previous wifi credentials all on its own. So it seems the tutorial is bad, or is missing some steps?

What is the correct way to change wifi credentials and not have them randomly change back?

[Charlie_Powell]

If I'm understanding correctly, this is very strange. So if you look in the octopi-wpa-supplicant.txt file now it still has the old credentials? Or the new ones?

[foosel]

Make sure the SD card isn't dying.

[5ft24]

If you actually changed the credentials in the file and save it, there is no way it can revert back to the old credentials unless you edit it again and change them back.