[Samba] Can not connect to share "NT_STATUS_BAD_NETWORK_NAME"

[brucehohl at access-4-free.com]

I have Suse 9.1 + Samba 3.0.9 + winbind joined to a Windows
2000 AD domain "MyCompany".  Yesterday for some unknown
reason (appears to be Win2K issue) connections to Samba and
the ability to browse the domain "MyCompany" from Win2K/XP
workstations failed but connections to the public share
offered by the Win2K server were OK.  Also, all Win98
workstations and were unable to "reconnect" to the Domain
"MyCompany".  The Win98 workstations were reset to 
"workgroup" mode and a drive was mapped to the Win2K public
share; connections to Samba shares could not be made.

Samba provides the following feed back:

The following commands succeed:
wbinfo -u
wbinfo -g
getent passwd
getent group
net ads info (clocks within seconds)

The following commands fail:
filesrv1:~ # wbinfo -t
checking the trust secret via RPC calls failed
error code was NT_STATUS_BAD_NETWORK_NAME (0xc00000cc)
Could not check secret

filesrv1:~ # smbclient //filesrv1/public -U bhohl -d 4
lp_load: refreshing parameters
Initialising global parameters
params.c:pm_process() - Processing configuration file
"/etc/samba/smb.conf"
Processing section "[global]"
doing parameter workgroup = MYCOMPANY
doing parameter realm = MYCOMPANY.COM
doing parameter security = ADS
doing parameter map to guest = Bad User
doing parameter password server = 192.168.1.201
doing parameter socket options = TCP_NODELAY SO_RCVBUF=8192
SO_SNDBUF=8192
doing parameter preferred master = No
doing parameter local master = No
doing parameter domain master = No
doing parameter wins server = 192.168.1.201
doing parameter ldap ssl = no
doing parameter idmap uid = 10000-20000
doing parameter idmap gid = 10000-20000
doing parameter winbind separator = /
doing parameter winbind use default domain = Yes
doing parameter printer admin = @ntadmin, root,
administrator
pm_process() returned Yes
added interface ip=192.168.1.53 bcast=192.168.1.255
nmask=255.255.255.0
Client started (version 3.0.9-1.1-SUSE).
Connecting to 192.168.1.53 at port 445
 session request ok
Serverzone is 18000
Password:
Doing spnego session setup (blob length=102)
got OID=1 2 840 113554 1 2 2
got OID=1 2 840 48018 1 2 2
got OID=1 3 6 1 4 1 311 2 2 10
got principal=filesrv1$@MYCOMPANY.COM
Got challenge flags:
Got NTLMSSP neg_flags=0x60890215
  NTLMSSP_NEGOTIATE_UNICODE
  NTLMSSP_REQUEST_TARGET
  NTLMSSP_NEGOTIATE_SIGN
  NTLMSSP_NEGOTIATE_NTLM
  NTLMSSP_NEGOTIATE_NTLM2
  NTLMSSP_CHAL_TARGET_INFO
  NTLMSSP_NEGOTIATE_128
  NTLMSSP_NEGOTIATE_KEY_EXCH
NTLMSSP: Set final flags:
Got NTLMSSP neg_flags=0x60080215
  NTLMSSP_NEGOTIATE_UNICODE
  NTLMSSP_REQUEST_TARGET
  NTLMSSP_NEGOTIATE_SIGN
  NTLMSSP_NEGOTIATE_NTLM
  NTLMSSP_NEGOTIATE_NTLM2
  NTLMSSP_NEGOTIATE_128
  NTLMSSP_NEGOTIATE_KEY_EXCH
NTLMSSP Sign/Seal - Initialising with flags:
Got NTLMSSP neg_flags=0x60080215
  NTLMSSP_NEGOTIATE_UNICODE
  NTLMSSP_REQUEST_TARGET
  NTLMSSP_NEGOTIATE_SIGN
  NTLMSSP_NEGOTIATE_NTLM
  NTLMSSP_NEGOTIATE_NTLM2
  NTLMSSP_NEGOTIATE_128
  NTLMSSP_NEGOTIATE_KEY_EXCH
SPNEGO login failed: NT_STATUS_BAD_NETWORK_NAME
session setup failed: NT_STATUS_BAD_NETWORK_NAME

Please help save my Samba server!
Thanks.