[Samba] NTLM Problems

[Firuz Azimov]

My problem with users getting popup auth windows randomly while
surfing in Internet
I am getting this log in my cache.log

[2011/03/05 16:21:05,  1] libsmb/ntlmssp.c:335(ntlmssp_
update)
 got NTLMSSP command 1, expected 3
[2011/03/05 16:21:06,  1] libsmb/ntlmssp.c:335(ntlmssp_update)
 got NTLMSSP command 1, expected 3
[2011/03/05 16:21:07,  1] libsmb/ntlmssp.c:335(ntlmssp_update)
 got NTLMSSP command 1, expected 3

I read many posts about this problem, but I cant find a solutions. If
someoneresolved this problem, please tell my how? because I cant resolve it
for a long time
Thanks