SQUID: The Requested URL Could not be Retrieved

[trafficking]

Hello!

I run PF Sense with Squid in a small office.  It has ran fine for a few months, however, today I started to get the following error when accessing random sites.  Refreshing the page a few times seems to fix the problem.

ERROR
The requested URL could not be retrieved
While trying to retrieve the URL: http://www.url.com
The following error was encountered:
Read Error
The system returned:
    (54) Connection reset by peer
An error condition occurred while reading data from the network. Please retry your request.
Your cache administrator is admin@domain.com.
Generated Wed, 19 Dec 2012 21:23:44 GMT by localhost (squid/2.7.STABLE9)

Any suggestions for fixing this would be greatly appreciated.

Thank You!

[marcelloc]

What squid version are you using?

On squid3, try to check dnsv4first option.