June-15th-2021, 07:27 AM
I have ethernet trouble with a certain netPI device(MAC addr: B827EB538466).
During a data transfer through ethernet connection, the connection may lost suddenly.
In syslog, I found a log message that "usb usb1-port1: disabled by hub (EMI?), re-enabling".
Since the recorded time of this log message is well corresponded with the time of connection lost, I suppose this is the root of this problem.
Based on the fact that the ethernet on the LAN9514, which is a microchip on raspberry pi, runs from usb, it is reasonable.
Since this problem does not occur with another netPI device(MAC addr: B827EBEFDC49), I suppose some hardware failure occurs this problem.
However, I am not sure.
So, Please tell me more if you know about this problem.
Best regards,
During a data transfer through ethernet connection, the connection may lost suddenly.
In syslog, I found a log message that "usb usb1-port1: disabled by hub (EMI?), re-enabling".
Since the recorded time of this log message is well corresponded with the time of connection lost, I suppose this is the root of this problem.
Based on the fact that the ethernet on the LAN9514, which is a microchip on raspberry pi, runs from usb, it is reasonable.
Since this problem does not occur with another netPI device(MAC addr: B827EBEFDC49), I suppose some hardware failure occurs this problem.
However, I am not sure.
So, Please tell me more if you know about this problem.
Best regards,
