[Samba] XP remote requests problem

[Lisa VanderAar]

I have a Samba (3.0.3-5) server running on a Fedora core 2-4 machine. 
There are numerous XP(SP2) clients, all of which have had no problem 
connecting to the shares. However at some point, some of the clients 
could not connect to the share. Others can connect no problem. Nothing 
changed on the linux side, but an updated security template was loaded 
on the XP machines that cannot connect.

The users are able to ping the server, see the server in Network 
Neighborhood, and ssh into the server. However, when they try to connect 
to the shares they get the following msg... "myserver1 does not accept 
remote requests"

Nothing looks odd in the nmbd and smbd log files. Further, I have a 
second linux box running RedHat 9 with samba 2.2.7a. All clients are 
able to access these shares, including those that can't connect to the 
3.0.3-5 shares.

I am guessing that the problem lies somewhere with the combination of 
the XP security updates and FC2 and/or samba 3.0.3-5. A lot of the XP 
security settings were changed. (I do not admin the XP boxes.) I will 
have to look through these changes, but there are a lot.

Based on my problem description, does anyone have an idea where to start 
when looking through the XP security settings? Or maybe what to look for?

For info, following is the 3.0.3-5 server's smb.conf. Both servers have 
the same configuration file, except of course for the server string and 
the Source and Develop shares.

(...I am using server mode security and am aware that it is not 
recommended. I did not initially set up samba and did not want to mess 
with it when it was working. I am new to samba.)

------------------------------------------------------------------
[global]

workgroup = SWDEVELOP
server string = myserver1
hosts allow = 147.68.
log file = /var/log/samba/%m.log
max log size = 0
security = server
password server = grckap2 grckap1
encrypt passwords = yes
unix password sync = Yes
passwd program = /usr/bin/passwd %u
passwd chat = *New*password* %n\n *Retype*new*password* %n\n 
*passwd:*all*authentication*tokens*updated*successfully*
pam password change = yes
obey pam restrictions = yes
socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
wins support = yes
username map = /etc/samba/smbusers
dns proxy = no
guest ok = no
preserve case = yes

#========== Share Definitions ============
[homes]
    comment = Home Directories
    browseable = no
    writable = yes
    valid users = %S
    force create mode = 0770
    force directory mode = 0770
    create mask = 0770

[Source]
    comment = Shared Source
    path = /home/source
    valid users = @developers
    public = no
    writeable = yes
    browsable = yes
    create mask = 0770
        force create mode = 0770
    force group = developers
        force directory mode = 0770

[Develop]
    comment = Shared Development
    path = /home/develop
    valid users = @developers
    public = no
    writeable = yes
    browsable = yes
    create mask = 0770
    force create mode = 0770
    force group = developers
    force directory mode = 0770
------------------------------------------------------------------

Any help would be greatly appreciated!!

-- 
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 Lisa VanderAar
 NASA Glenn Research Center  MS 86-11
 21000 Brookpark Rd.  Cleveland, OH 44135
 PH: (216)433-6514    FAX: (216)433-8269
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