Hello,
I am fairly new to working with Artiq but recently we encountered a problem where we could not connect to the Kasli core device over ethernet, did not receive any response when pinging it. We also noticed the red error led was on. Connecting to the core device via USB gives us following log:
I simultaneously tried to reconfigure the ip address with artiq_mkfs which got rid of the red error led but the problem with the lost SDA arbitration still persists.