Bad Config File

[Norty]

I changed internet providers today and changed the info for the WiFi name and pass code.  No other changes other than name.  When I plugged it in the front of the unit said Bad Config File.  I tried a different SD card, starting with a new file no luck.  I then went back to the original file and put in the original router info expecting / hoping I would get a good file but no connection.  But that to comes back as a bad file.  I tried this on a different SD card and still the same issue.  I did notice that I am using a 32GB card but believe I had used it successfully in the past.

I also have unplugged the mains a couple of times

The file name does not say  ".txt" but the description is txt file.  At the bottom of my computer that shows downloads it does say "dp_cfg.txt" so I am assuming that is fine.

I run my 220 Pro directly from my computer.

Any suggestions?