I had the Pi4 with LinuxCNC working with the MESA card including even interfacing to the CANUSB and showing Inputs on the AXIS screen. Because the WiFi connection is crappy where my lab bench is I removed the Ethernet to the MESA and connected to my network. Reset the Ethernet to be automatically assigned an IP and turned off the Wifi. Next, in order to get into the Pi4 I installed samba. After that lots of drag and drop and working on getting some Lazarus Free Pascal Software running with both a HAT with the MCP2515 and also the CANUSB. With all that done it was time to make it a LinuxCNC module again. I enabled the WiFi, reconnected the MESA card, set up the Ethernet default IP to 192.168.1.121 which is what LinuxCNC expects according to the error messages. But for some reason the MESA won't connect. Powering it shows the power LED. The 4 LEDs go on in sequence on one direction and then the other after which only LED #4 stays on. There are a few blinky LEDs on the Ethernet connector. I'm stuck. What's the next step to get this working again? Thanks John
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