On Fri, 18 Sep 2020 01:44:53 +0000 Peter Board wrote: > Attached is the ssh_config and sshd_config. Both looks sane... Could you please check the output of: ls -l /dev/*ty* and icacls 'F:\cygwin64\dev' -- Takashi Yano <takashi.yano@nifty.ne.jp>