[squid-users] I enable offline_mode, after 3 days... access denied error occurs

If offline_mode is disable, connection is slow but Ok
To speed up connection speed, I enable offline_mode and connection is fast.
But after 3 days, the following error occurs when accessing some sites...
These site are not banned from our ISP
If this error occurs, i refresh 3-5 times and works...
I do not set any time limit...

ERROR: The requested URL could not be retrieved
--------------------------------------------------------------------------------
While trying to retrieve the URL:
http://z.about.com/d/paranormal/1/0/C/T/mumified_mermaid.jpg
The following error was encountered:

Access Denied.
Access control configuration prevents your request from being allowed
at this time. Please contact your service provider if you feel this is
incorrect.
Your cache administrator is root.
--------------------------------------------------------------------------------
Generated Wed, 20 Aug 2008 06:04:30 GMT by test.abc.net.mm (squid/2.6.STABLE6)

So I disable offline_mode again but this error still occurs...
Received on Thu Aug 21 2008 - 04:07:40 MDT