[Samba] winbind's libads/ldap_utils.c repeatedly says 'failed to reconnect (Timed out)'

[Jonathan C. Detert]

I'm repeatedly needing to restart winbind v3.0.22 on ubuntu server
v6.10.  The reason why is that it fails to get group info.  The passwd
info is still accessible; it just can't figure out what groups a person
is in.  I'm using idmap backend = ad , and winbind nss info = sfu.

Looking in /var/log/samba/log.wb-ADDOMAINNAME, I see many lines at
seemingly randomly time intervals that read like this:

[2007/04/30 04:30:16, 1] libads/ldap_utils.c:ads_do_search_retry(77)
  ads_search_retry: failed to reconnect (Timed out)

Are these lines related to my need to restart winbind?  Either way, are
they indicative of a problem that should be fixed?  If so, any idea how
to fix the probem?

Thanks,

Jon

Relevant smb.conf directives follow:

        security = ADS
        socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
        os level = 99
        preferred master = No
        local master = No
        dns proxy = No
        idmap backend = ad
        idmap uid = 500-45000
        idmap gid = 500-45000
        template homedir = /home/%U
        template shell = /bin/bash
        winbind separator = +
        winbind cache time = 600
        winbind use default domain = Yes
        winbind nested groups = Yes
        winbind nss info = template, sfu
        invalid users = root