Bug (?) - Can't schedule WAN reconnect at 0 minutes

Morlock

Hi,
I just want to hint at what I believe is a bug in current pfSense CE 2.6.0. I can't really reproduce it, because of the specific circumstances.

The situation that I had experienced:

WAN configured some time ago on a (not too old) previous version and upgraded to 2.6
The WAN has a scheduled reconnect enabled at the full hour during the night, to control the ISP's forced disconnect
A configuration change was required on the WAN interface - enabling IPv6 in my case
After the next scheduled WAN reconnect, the unit reconnected frequently, the web UI eventually crashed, needed a reboot.

I suspected something about my IPv6 settings, modem firmware and port flapping issues and also the gateway monitoring.

But when inspecting the logs it turned out: The change had cleared the "Minute" field for the scheduled connection reset. Consequently, the crontab had a * set in the minute column, and the reconnect would have occured every minute for one hour.

It is not possible to reconfigure the schedule at 0 minutes via the WAN settings (the field is cleared each time after saving), while other timings seem to work. Setting the cron job manually works and is displayed correctly in the WAN settings.

jimp

That is a known issue, already fixed in development snapshots: https://redmine.pfsense.org/issues/13307

You can install the System Patches package and then create an entry for b381fa76bd817f94f9971caddace1faef1e83b6c to apply the fix.

Morlock

@jimp Thanks for confirming, I had missed the redmine ticket.