NTP server stop when pppoe is shortly down to reconnect

[slu]

Searching for a while now why my ntp server stop every morning.
Found out that this happens only if one of my two pppoe wan interface reconnecting.

Jan 13 05:23:16 	php: rc.newwanip: Resyncing OpenVPN instances for interface VDSL1.
Jan 13 05:23:16 	php: rc.newwanip: Creating rrd update script
Jan 13 05:23:18 	php: rc.newwanip: pfSense package system has detected an ip change 217.xxx.xxx.xxx -> 217.xx.xxx.xxx ... Restarting packages.
Jan 13 05:23:18 	check_reload_status: Starting packages
Jan 13 05:23:18 	check_reload_status: Reloading filter
Jan 13 05:23:20 	php: rc.start_packages: Restarting/Starting all packages.
Jan 13 05:23:21 	kernel: pid 70804 (ntpd), uid 0: exited on signal 11 (core dumped)

Jan 13 05:23:18 	ntpd[71332]: ntpd exiting on signal 15
Jan 13 05:23:20 	ntpdate[62356]: adjust time server 212.xx.x.xx offset -0.018525 sec
Jan 13 05:23:20 	ntp: Successfully synced time after 1 attempts.
Jan 13 05:23:20 	ntp: Starting NTP Daemon.
Jan 13 05:23:20 	ntpd[70656]: ntpd 4.2.6p5@1.2349-o Wed Jul 24 14:35:11 UTC 2013 (1)
Jan 13 10:20:31 	ntpd[39656]: ntpd 4.2.6p5@1.2349-o Wed Jul 24 14:35:11 UTC 2013 (1)

Note: I restart the NTP server manuel at 10:20.
2.1-RELEASE (amd64)

[biggsy]

Same problem here on 2.1-RELEASE (amd64) in an ESXi VM.

I'm able to restart NTP manually once PPPoE is back up.

[slu]

Is this a known issue?
By the way, this happens only if my default gateway (VDSL1) reconnect.

Update:
Have a look on a other pfsense with only one pppoe wan connection, ntp work here fine.
See in the log that the ntp server stop for a reconnect of the wan pppoe connection, is it possible that the ntp server start again
to fast?

Update2:
"fixed" it with the Service Watchdog package  ;)