Draytek to pfsense site to site problem with reconnecting

[tattoomees]

Hi I need help i have few sites and some of them have dyndns host and every night those tunnels go down , only way is to activate is press edit button on vpn config page and save and apply settings then tunnel comes up.

Is there any way to fix this issue?
Regards
TM

[Matthias]

In your Phase 2 settings under Advanced Options set an address on the remote network to be pinged. This may allow the tunnel to re-establish after it disconnects. Try adjusting the settings of dead peer detection in Phase 1 or disable it completely and see what happens.