Problem seeing the master domain servers in network neighborhood

[root]

Please send any response to margaret_doll at brown.edu

I am running RH 2.4.9-13 and samba 2.2.1a-4 on several systems.

Since the last upgrade I have not been able to consistently see the servers in
the Network Neighborhood on the Windows computers within the departments.  I can
connect to them through the "Find" utility, but I have to logon to them; the
Windows logon is not sufficient.  Again this is sporatic.

Following through the Diagnosis.txt, my servers fail at test 3.  Output is 
attached below along with the results from ifconfig, part of my host table,
and smb.conf.

I need to get this working smoothly again before school starts and would
appreciate any help you can give me.

Script started on Wed Jan 16 14:42:06 2002
]0;root at chemps:/etc/samba[root at chemps samba]# smbclient -L chemps
added interface ip=128.148.68.50 bcast=128.148.68.255 nmask=255.255.255.0
added interface ip=127.0.0.1 bcast=127.255.255.255 nmask=255.0.0.0
Password: 
session setup failed: ERRSRV - ERRbadpw (Bad password - name/password pair in a Tree Connect or Session Setup are invalid.)
]0;root at chemps:/etc/samba[root at chemps samba]# ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:C0:4F:61:1D:01  
          inet addr:128.148.68.50  Bcast:128.148.68.255  Mask:255.255.255.0
          EtherTalk Phase 2 addr:40516/81
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2097842 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1370322 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 
          RX bytes:602721186 (574.7 Mb)  TX bytes:1199164228 (1143.6 Mb)

]0;root at chemps:/etc/samba[root at chemps samba]# more /etc/hosts
127.0.0.1	localhost	chemps.chem.brown.edu
128.148.19.202	cfarm.brown.edu		cfarm

128.148.68.50	chemps.chem.brown.edu	chemps

...
Script done on Wed Jan 16 14:42:42 2002

# Samba config file created using SWAT
# from chemps.chem.brown.edu (128.148.68.50)
# Date: 2000/09/28 11:18:08

# Global parameters
[global]
	workgroup = CHEMISTRY 
	netbios name = CHEMPS
	server string = Chemistry Samba Server
	interfaces = 128.148.68.50/24 127.0.0.1
	security = server 
	encrypt passwords = yes
#	smb passwd file = /etc/samba/smbpasswd
	update encrypted = yes
	min passwd length = 7
#	unix password sync = yes
#	passwd program = /usr/bin/passwd %u
#	passwd chat = *current*password* %o\n *New*password* %n\n *Retype*password* %n\n *updated*successfully*
#	debug level = 100
#	passwd chat debug = yes
	log file = /var/log/samba/log.%m
	max log size = 50
	socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
#	domain groups = Chemistry 
	domain guest group = Rose-Petruck, Xraygroup, MacMillan, DLAB, NMRGROUP, MASSPEC "WEBER GROUP" Geology 
#	domain guest users = guest
	domain logons = yes
	guest account = guest
	dns proxy = No
#	wins server = 128.148.124.140
#If you want Samba to win elections then just set the "os level" global
#option in smb.conf to a higher number.  It defaults to 0.  Using 34
#would make it win all elections over every other system (except other
#samba systems!)
#
#A "os level" of 2 would make it beat WfWg and Win95, but not NTAS.  A
#NTAS domain controller uses level 32.
#
#The maximum os level is 255

        os level =100
	preferred master = Yes
	domain master = Yes
	wins proxy = yes
	wins support = yes
	dns proxy = no
	remote announce = 128.148.68.255/Chemistry 128.148.124.255/Chemistry 128.148.119.255/Chemistry 128.148.116.255/Chemistry 
	invalid users = bin daemon sys adm tty disk lp mem kmem wheel mail news uucp man games gopher dip ftp floppy utmp xfs console ppusers
	valid users = guest, @chemusers, @geousers, @users
#	admin users = root
	username map = /etc/samba/smbusers
	write list = @chemusers, @users, @geousers
#	hosts allow = 128.148.68.0/255.255.255.0 128.148.124.0/255.255.255.0 128.148.119.0/255.255.255.0 128.148.116.0/255.255.255.0 128.148.118.0/255.255.255.0127.
	hosts allow = 128.148. 127.0.0.1
	dos filetimes = Yes
	dos filetime resolution = Yes

[homes]
	comment = Home Directories
	read only = No
	browseable = No

[printers]
	comment = All Printers
	path = /var/spool/samba
	guest ok = Yes
	print ok = Yes
[Mac]
	comment = Distributed Software for MacIntoshes
	path = /chemusers/1-MacSoftware
	volume = Utilities for MacIntoshes
	guest ok = yes
[Windows]
	comment = Distributed Software for Windows
	path = /chemusers/WinSoftware
	volume = Utilities for Window Computers
	guest ok = yes

Again my e-mail address is margaret_doll at brown.edu

Thank you.