I have this error in Ubuntu 14.04 32-bit.
New to both Ubuntu and launchpad, so bear with me.
Here's the log of it.
Oct 26 13:47:30 rockhorse-AOA110 avahi-daemon[471]: message repeated 2 times: [ server.c: Packet too short or invalid while reading response record. (Maybe a UTF-8 problem?)]
Oct 26 14:13:57 rockhorse-AOA110 avahi-daemon[471]: Invalid legacy unicast query packet.
Oct 26 14:13:58 rockhorse-AOA110 avahi-daemon[471]: message repeated 2 times: [ Invalid legacy unicast query packet.]
Oct 26 14:13:58 rockhorse-AOA110 avahi-daemon[471]: Received response from host ipA.DD.rE.SS with invalid source port 63992 on interface 'eth0.0'
Oct 26 14:13:59 rockhorse-AOA110 avahi-daemon[471]: Received response from host ipA.DD.rE.SS with invalid source port 63992 on interface 'eth0.0'
Oct 26 14:14:04 rockhorse-AOA110 avahi-daemon[471]: Invalid legacy unicast query packet.
Oct 26 14:14:04 rockhorse-AOA110 avahi-daemon[471]: message repeated 2 times: [ Invalid legacy unicast query packet.]
Oct 26 14:14:04 rockhorse-AOA110 avahi-daemon[471]: Received response from host ipA.DD.rE.SS with invalid source port 64934 on interface 'eth0.0'
Oct 26 14:17:09 rockhorse-AOA110 CRON[5542]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Oct 26 14:16:11 rockhorse-AOA110 avahi-daemon[471]: message repeated 8 times: [ Received response from host ipA.DD.rE.SS with invalid source port 64934 on interface 'eth0.0']
Oct 26 14:17:30 rockhorse-AOA110 avahi-daemon[471]: server.c: Packet too short or invalid while reading response record. (Maybe a UTF-8 problem?)
Oct 26 14:17:39 rockhorse-AOA110 avahi-daemon[471]: Invalid legacy unicast query packet.
Oct 26 14:17:40 rockhorse-AOA110 avahi-daemon[471]: message repeated 2 times: [ Invalid legacy unicast query packet.]
Oct 26 14:17:40 rockhorse-AOA110 avahi-daemon[471]: Received response from host ipA.DD.rE.SS with invalid source port 62285 on interface 'eth0.0'
Oct 26 14:18:43 rockhorse-AOA110 avahi-daemon[471]: message repeated 7 times: [ Received response from host ipA.DD.rE.SS with invalid source port 62285 on interface 'eth0.0']
Oct 26 14:19:42 rockhorse-AOA110 avahi-daemon[471]: Invalid legacy unicast query packet.
Oct 26 14:19:43 rockhorse-AOA110 avahi-daemon[471]: Invalid legacy unicast query packet.
Oct 26 14:19:43 rockhorse-AOA110 avahi-daemon[471]: Received response from host ipA.DD.rE.SS with invalid source port 62285 on interface 'eth0.0'
Oct 26 14:19:43 rockhorse-AOA110 avahi-daemon[471]: Invalid legacy unicast query packet.
Oct 26 14:19:43 rockhorse-AOA110 avahi-daemon[471]: Received response from host ipA.DD.rE.SS with invalid source port 62285 on interface 'eth0.0'
Oct 26 14:21:50 rockhorse-AOA110 avahi-daemon[471]: message repeated 7 times: [ Received response from:
lid source port 63992 on interface 'eth0.0'
Oct 26 14:13:59 rockhorse-AOA110 avahi-daemon[471]: Received response from host ipA.DD.rE.SS with invalid source port 63992 on interface 'eth0.0'
Oct 26 14:14:04 rockhorse-AOA110 avahi-daemon[471]: Invalid legacy unicast query packet.
Oct 26 14:14:04 rockhorse-AOA110 avahi-daemon[471]: message repeated 2 times: [ Invalid legacy unicast query packet.]
Oct 26 14:14:04 rockhorse-AOA110 avahi-daemon[471]: Received response from host ipA.DD.rE.SS with invalid source port 64934 on interface 'eth0.0'
Oct 26 14:17:09 rockhorse-AOA110 CRON[5542]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Oct 26 14:16:11 rockhorse-AOA110 avahi-daemon[471]: message repeated 8 times: [ Received response from host ipA.DD.rE.SS with invalid source port 64934 on interface 'eth0.0']
Oct 26 14:17:30 rockhorse-AOA110 avahi-daemon[471]: server.c: Packet too short or invalid while reading response record. (Maybe a UTF-8 problem?)
Oct 26 14:17:39 rockhorse-AOA110 avahi-daemon[471]: Invalid legacy unicast query packet.
Oct 26 14:17:40 rockhorse-AOA110 avahi-daemon[471]: message repeated 2 times: [ Invalid legacy unicast query packet.]
Oct 26 14:17:40 rockhorse-AOA110 avahi-daemon[471]: Received response from host ipA.DD.rE.SS with invalid source port 62285 on interface 'eth0.0'
Oct 26 14:18:43 rockhorse-AOA110 avahi-daemon[471]: message repeated 7 times: [ Received response from host ipA.DD.rE.SS with invalid source port 62285 on interface 'eth0.0']
Oct 26 14:19:42 rockhorse-AOA110 avahi-daemon[471]: Invalid legacy unicast query packet.
Oct 26 14:19:43 rockhorse-AOA110 avahi-daemon[471]: Invalid legacy unicast query packet.
Oct 26 14:19:43 rockhorse-AOA110 avahi-daemon[471]: Received response from host ipA.DD.rE.SS with invalid source port 62285 on interface 'eth0.0'
Oct 26 14:19:43 rockhorse-AOA110 avahi-daemon[471]: Invalid legacy unicast query packet.
Oct 26 14:19:43 rockhorse-AOA110 avahi-daemon[471]: Received response from host ipA.DD.rE.SS with invalid source port 62285 on interface 'eth0.0'