[Samba] Authentication problem

[av.podrezov at stalcom.com]

Hello,

os: linux 2.4.30
samba: 3.0.20

I have a problem with authentication of squid users in AD.
For trying to resolve this problem run script:
----------------------cut----------------------
#!/bin/sh
while [ 1 = 1 ]; do {
 echo '************************************'
 /bin/date
 /usr/bin/wbinfo -a '<domain>\<user>'%'<password>'
 /bin/date
 sleep 2
 echo
};
done
----------------------cut----------------------

and logging it`s output:

----------------------cut----------------------
...
************************************
Thu Sep  8 16:29:06 MSD 2005
plaintext password authentication succeeded
challenge/response password authentication succeeded
Thu Sep  8 16:29:06 MSD 2005

************************************
Thu Sep  8 16:29:08 MSD 2005
plaintext password authentication succeeded
challenge/response password authentication succeeded
Thu Sep  8 16:30:09 MSD 2005

************************************
Thu Sep  8 16:30:11 MSD 2005
plaintext password authentication succeeded
challenge/response password authentication succeeded
Thu Sep  8 16:30:11 MSD 2005
...
----------------------cut----------------------

at 16:29:08 there is a pause in authentication process.
at 16:32:01 squid dying whith "Too many queued ntlmauthenticator requests (251 on 50)"
Observe this error 2-3 times per day.

Thanks for any help.