Re: HamPi lockup
Dave Slotter, W3DJS
I seem to recall some issue on the Pi4 with wifi and certain size display monitors.
Ahhh. I found one of many articles: https://www.zdnet.com/article/raspberry-pi-4-wi-fi-problem-firmware-update-will-fix-your-screen-resolution-bug/#:~:text=Dozens%20of%20Raspberry%20Pi%204,on%20the%20Raspberry%20Pi%20forum.&text=The%20exact%20cause%20remains%20a,interference%20with%20Wi%2DFi%20signals.
You might want to check to see if this is your issue...