I see many lines in /var/log/auth.log about sshd sessions, like belowMar 25 11:04:47 hosting-prd sshd[7882]: error: no more sessionsMar 25 11:04:47 hosting-prd sshd[7882]: error: no more sessionsMar 25 11:04:47 hosting-prd sshd[7882]: error: no more sessionsI tried to increase more messages with LogLevel VERBOSE in /etc/ssh/sshd_config, but still no more hints.
sshd error: no more sessions
sshd;session