主机能够ssh连接上，但是我配置会话提示不可达

设备：macbook air
版本：2.7.0
我之前配置的会话，能够连接，但是一下子突然就不行了，而且重装了以后也无法连接
追加说明：由于2.7的跳板机很卡，我的mac ,先装的2.7版本，这个时候2.7的还能连，然后又装了2.6的，2.7就异常了，2.6可以正常连接的

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Start by reproducing the configured-session failure on macOS with WindTerm 2.7.0, then compare it with 2.6 and the direct SSH connection described in the issue. Review the attached screenshots and collect connection logs; done means the cause of the version-dependent session failure is identified and the configured session connects reliably.

Written by the indexing model from the issue text.