Could you please enable verbose log, and send me a copy of desensitized log?
It's very likely caused by server setup, please check following directives in your server config file:
ChannelTimeout
ClientAliveCountMax
andClientAliveInterval
UnusedConnectionTimeout
The Codinn Store version supports ssh-agent, let me know if you need assitance for setup.
Please set log level to DEBUG3, and send me a copy of desensitized log when applications run into connection errors.
And, I'm sorry for the late reply.
Kindly Regards,
Yang