winbind offline cache issue

I have a problem, when I'm offline I can not connect to my localhost via ssh.

Actual results:
Domain Controller unreachable, using cached credentials instead. Network resources may be unavailable
Connection closed by 127.0.0.1

/etc/samba/smb.conf :

[global]

workgroup = xxxx
netbios name = xxxx
server string = xxxx
realm = xxxx
security = ads

password server = xxxx
idmap uid = 500-1000000
idmap gid = 500-1000000
idmap backend = tdb
encrypt password = yes
idmap config xxxx:backend = rid
idmap config xxxx:base_rid = 500
idmap config xxxx:range = 500-1000000

socket options = SO_REUSEADDR TCP_NODELAY SO_RCVBUF=16383 SO_SNDBUF=16384

template homedir = /home/xxxx/%U
template shell = /bin/bash

winbind uid = 500-1000000
winbind gid = 500-1000000
winbind use default domain = true
winbind offline logon = yes
winbind refresh tickets = true
winbind cache time = 86400
winbind reconnect delay = 3600
winbind enum users = yes
winbind enum groups = yes
allow trusted domains = yes

lock directory = /var/cache/samba/