VPN error DPD - ESP

[Tecnologie]

Hello everybody, I have vpn on pcs for connect in headquarter. Sometime, I don' t not why, but tunnel come in error, and error si always the same. I post the image of event error. Depend of what this kind of error? Thanks very much!

[BioGlitch]

SamH wrote:

Where can I change the DPD settings in a Fortigate?

Thank you 

config vpn ipsec phase1-interface edit

set dpd disable

next

end 

[Tecnologie]

Ok thanks everybody. My problem was undertand if there was a problem " with IpSec protocol" or with the line... So thank for explanations and I change the phone line