I have a dialup type VPN with Fortinet and a public IP address, all VPNs are site to site type with IPsec IKE1 and xauth enabled on all sites. I’m trying to connect a RUT200 firmware RUT2M_R_00.07.12.3 but after a while it stops passing traffic by ping, and I’m not sure why, one possible reason is because of the IP address change in the cellular operator’s SIM and the lack of revalidation of the peer with the remote site. I don’t know what else to do. Help.