Took me 5 months to find the answer, being assisted by both Fortinet
support, and the ISP which were throwing the ball to each other..
Fortinet and I support thought it was a routing issue at the ISP
level.But then we realized the LAN Interface IP wa...
Resurrecting this 6-years old thread... I'm using 200E firewall with
FortiOS 7.4.0Experiencing the exact same symptoms.ISP assigned /48
block.WAN assigned with smaller block /112LAN and VLANS assigned with
/64 blocks WAN Traffic no issues with IPv6.L...