I searched through the forums and found some similar but not exactly whats occurring to me.
Since I started using the UTM (Home Edition) I have noticed that I get random disconnects that only last for a second.
At first I thought it might be a speed duplex error or DHCP error as I noticed a DHCP release renew every time it occurred. ( see the logs below) but after I set my WAN port to static I still get disconnects.
This is really annoying as it kills any VIOP calls or downloads or remote sessions and it occurs every 1 to 6 minutes non stop all day.
Any thoughts on how to research this? I'm not familiar with Sophos as I normally support only Watchguards.
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dhclient: Received signal 15, initiating shutdown.
2015:10:07-23:02:52 home_firewall dhclient: DHCPRELEASE on eth0 to 192.168.254.254 port 67
2015:10:07-23:02:54 home_firewall dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4
2015:10:07-23:02:54 home_firewall ntpd[28995]: Deleting interface #4 eth0, 192.168.254.2#123, interface stats: received=24, sent=26, dropped=0, active_time=177 secs
2015:10:07-23:02:54 home_firewall ntpd[28995]: 204.9.54.119 interface 192.168.254.2 -> (none)
2015:10:07-23:02:54 home_firewall ntpd[28995]: 129.6.15.30 interface 192.168.254.2 -> (none)
2015:10:07-23:02:54 home_firewall ntpd[28995]: 204.2.134.163 interface 192.168.254.2 -> (none)
2015:10:07-23:02:54 home_firewall ntpd[28995]: peers refreshed
2015:10:07-23:02:58 home_firewall dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8
2015:10:07-23:02:58 home_firewall dhclient: DHCPREQUEST on eth0 to 255.255.255.255 port 67
2015:10:07-23:02:58 home_firewall dhclient: DHCPOFFER from 192.168.254.254
2015:10:07-23:02:58 home_firewall dhclient: DHCPACK from 192.168.254.254
2015:10:07-23:02:58 home_firewall dhclient: bound to 192.168.254.2 -- renewal in 93406651 seconds.
2015:10:07-23:03:00 home_firewall ntpd[28995]: Listen normally on 6 eth0 192.168.254.2 UDP 123
2015:10:07-23:03:00 home_firewall ntpd[28995]: peers refreshed
2015:10:07-23:03:00 home_firewall ntpd[28995]: new interface(s) found: waking up resolver
2015:10:07-23:03:14 home_firewall dhclient: Received signal 15, initiating shutdown.
2015:10:07-23:03:14 home_firewall dhclient: DHCPRELEASE on eth0 to 192.168.254.254 port 67
2015:10:07-23:03:15 home_firewall ntpd[28995]: Deleting interface #6 eth0, 192.168.254.2#123, interface stats: received=18, sent=18, dropped=0, active_time=15 secs
2015:10:07-23:03:15 home_firewall ntpd[28995]: 204.2.134.163 interface 192.168.254.2 -> (none)
2015:10:07-23:03:15 home_firewall ntpd[28995]: 129.6.15.30 interface 192.168.254.2 -> (none)
2015:10:07-23:03:15 home_firewall ntpd[28995]: 204.9.54.119 interface 192.168.254.2 -> (none)
2015:10:07-23:03:15 home_firewall ntpd[28995]: peers refreshed
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