I have 1 DC in the UK running samba4 fine for the last 6 weeks now am trying to join another this one is in shanghai connected via VPN when joining am getting the following error samba-tool domain join sondrel.com DC -Uadministrator --realm=sondrel.com--dns-backend=BIND9_DLZ Finding a writeable DC for domain 'sondrel.com' Found DC uk-dc01.sondrel.com Password for [WORKGROUP\administrator]: workgroup is SONDREL realm is sondrel.com checking sAMAccountName Adding CN=CN-DC01,OU=Domain Controllers,DC=sondrel,DC=com Adding CN=CN-DC01,CN=Servers,CN=Shanghai,CN=Sites,CN=Configuration,DC=sondrel,DC=com Adding CN=NTDS Settings,CN=CN-DC01,CN=Servers,CN=Shanghai,CN=Sites,CN=Configuration,DC=sondrel,DC=com Failed to bind to uuid e3514235-4b06-11d1-ab04-00c04fc2dcd2 for e3514235-4b06-11d1-ab04-00c04fc2dcd2 at ncacn_ip_tcp:uk-dc01.sondrel.com[1024,seal] NT_STATUS_IO_TIMEOUT Join failed - cleaning up checking sAMAccountName Deleted CN=CN-DC01,OU=Domain Controllers,DC=sondrel,DC=com Deleted CN=CN-DC01,CN=Servers,CN=Shanghai,CN=Sites,CN=Configuration,DC=sondrel,DC=com ERROR(runtime): uncaught exception - (-1073741643, 'NT_STATUS_IO_TIMEOUT') File "/usr/lib64/python2.7/site-packages/samba/netcmd/__init__.py", line 175, in _run return self.run(*args, **kwargs) File "/usr/lib64/python2.7/site-packages/samba/netcmd/domain.py", line 552, in run machinepass=machinepass, use_ntvfs=use_ntvfs, dns_backend=dns_backend) File "/usr/lib64/python2.7/site-packages/samba/join.py", line 1172, in join_DC ctx.do_join() File "/usr/lib64/python2.7/site-packages/samba/join.py", line 1075, in do_join ctx.join_add_objects() File "/usr/lib64/python2.7/site-packages/samba/join.py", line 541, in join_add_objects ctx.join_add_ntdsdsa() File "/usr/lib64/python2.7/site-packages/samba/join.py", line 474, in join_add_ntdsdsa ctx.DsAddEntry([rec]) File "/usr/lib64/python2.7/site-packages/samba/join.py", line 384, in DsAddEntry ctx.drsuapi_connect() File "/usr/lib64/python2.7/site-packages/samba/join.py", line 362, in drsuapi_connect ctx.drsuapi = drsuapi.drsuapi(binding_string, ctx.lp, ctx.creds) is there a work around ot some setting I can adjust to stop the time out over the low bandwidth link ? regards -- Damien Dye IT Manager *Sondrel Ltd* Sondrel House, Theale Lakes Business Park Moulden Way, Sulhamstead, Berkshire, RG7 4GB, UK Tel: +44(0)118 9838 550 www.sondrel.com [image: Sondrel] <http://www.sondrel.com/> This e-mail and any attachments may be confidential or legally privileged. If you are not the intended recipient, you should destroy the e-mail message and any attachments, and inform us of the erroneous delivery by return e-mail. You are prohibited from retaining, distributing, disclosing or using any information contained herein. Internet communications cannot be guaranteed to be timely, secure, error or virus-free. Sondrel Ltd and the sender do not accept liability for any errors or omissions, nor do we accept liability for the content of this email, or for the consequences of any actions taken on the basis of the information provided, unless that information is consequently confirmed in writing under the personal signature of a duly authorised officer of Sondrel Ltd. This email is sent on behalf of Sondrel Ltd registered in England with number 4491953, registered office Sondrel House, Theale Lakes Business Park, Moulden Way, Sulhamstead, Berkshire, RG7 4GB, UK.