After 8 months of no issue I turned on printer (10" I3V) and could not connect through rPi. Get "Error: Failed to autodetect serial port, please set it manually." from Octopint. Tried direct wired connection to laptop USB and could not connect using any slicer program. This is a RAMPS card and I made no changes since yesterday when it was working fine. Currently printing using SD card so other than connectivity all appears good. Switched USB cord, no help. Is there a component on Ramps board that can go bad and cause this? Anybody else experience this? Thanks.