Proxy server gets hang

We are using squid proxy server in Linux and server is getting hang often, during this time when see the log file it will show like below

Please address this issue and give me a solution
Thanks

Jul 23 11:52:26 Linux-GW avahi-daemon[2028]: Invalid response packet from host 192.168.1.154.
Jul 23 11:54:55 Linux-GW avahi-daemon[2028]: Invalid response packet from host 192.168.1.154.
Jul 23 12:36:07 Linux-GW avahi-daemon[2028]: Invalid response packet from host 192.168.1.154.
Jul 23 12:38:52 Linux-GW last message repeated 2 times

Sorry this forum has not been of more assistance. I don't know the cause of your problem. This link gives some info and potentially useful links.

http://www.filepie.us/?title=Invalid_packet

Perhaps you could post to a help forum dedicated to squid proxy servers?

Here is the user's guide for squid:

http://www.deckle.co.za/squid-users-guide/

Here is a squid tutorial:

http://www.visolve.com/squid/Squid_tutorial.php

Hi . I have this problem too , but I couldn't repair it .