Hi, we recently set up several proxy servers using transparent AD authentication. Pretty much all seems to be ok except at completely random times several of these servers (not all) have lost winbind connectivity to the AD server. The cache log shows utils/ntlm_auth.c:get_winbind_domain(140) could not obtain winbind domain name! Does anyone know the reason, or is there somewhere else I need to look for clues other than the cache log? winbind logs and messages log contain nothing of help. thanks in anticipation... K. This email originates from AXA Technology Services UK Limited (reg. no. 1854856) which has its registered office at 5 Old Broad Street, London EC2N 1AD, England. This message and any files transmitted with it are confidential and intended solely for the individual or entity to whom they are addressed. If you have received this in error, you should not disseminate or copy this email. Please notify the sender immediately and delete this email from your system. Please also note that any opinions presented in this email are solely those of the author and do not necessarily represent those of The AXA UK Plc Group. Email transmission cannot be guaranteed to be secure, or error free as information could be intercepted, corrupted, lost, destroyed, late in arriving or incomplete as a result of the transmission process. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of email transmission. Finally, the recipient should check this email and any attachments for viruses. The AXA UK Plc Group accept no liability for any damage caused by any virus transmitted by this email.