Hi , I have a typical problem with yahoo messenger getting logged in through squid proxy , it gived this error You have been signed out because you signed in on different computer or device , My squid.conf file looks like this acl YAHOO1 dstdomain .msg.yahoo.com acl YAHOO2 url_regex -i ^http://http.msg.yahoo.com/notify/ ^http://shttp.msg.yahoo.com/notify/ http_access allow YAHOO2 http_access allow YAHOO1 Any Inputs Are Welcome Regards Shardul