Send to sylog when connection return?

I have start to work with syslog system and it’s working
my problem is that if there is any error while the router is offline I don’t get it
is there any way to send all the errors that happen while the unit was offline?

or how can I save all the offline error and send them to the syslog when the unit return to be online?

Thanks,

As you know, syslog uses UDP, so no retries when the connection comes back. U may want to look into scripts.

Sent from my cell phone via Tapatalk. Sorry for the errors.