Am 08.10.2015 um 15:32 schrieb Hua Wang ehwang@163.com:
Yes, I have tried much larger numbers than 60 and 3 for the above two parameters respectively. And I am sure it is using ‘protocol 2’ because it’s uncommented in sshd_config.
Is there a way to catch what’s happing before quit? I couldn’t see anything except for the line ‘write failed, broken pipe’.
as the system was physically "touch" (reinstalled 6->7), i suggest to check the hw again e.g. check cable, check switch port (change the port), power supply of the switch etc.
-- LF