@miki777 we recently had to setup the MX84 (with 14.40) and MX64 (with 14.40) to XG210 (with SFOS 17.5.8 MR-8). We were able to keep the tunnel working with the attached MX and XG IPsec policies and a bit of screen sharing to make sure VPN subnets/communities were set up correctly.   I don't know if it's still relevant for your case, but since I don't see a lot of info about Meraki with Sophos, I'll just leave this here.   MX84 custom IPsec   XG210 custom IPsec     ... View more