Request timed out would mean all the necessary intermediaries responded to ARP requests and either sent on the packet or dropped it.
Can you run sniffs and flow traces?
Run this in two separate windows, one from the local FGT and one from the remote:
di sniff pack any " host w.x.y.z" 4 //--website address
See if it flows through both devices.
Then a flow trace:
di de reset
di de en
di de fl s c en
di de fl s f en
di de fl filter addr w.x.y.z //--website IP
di de fl tr start 5000
Try the ping/traceroute, then...
di de fl tr stop
di de fl filter clear
di de reset
di de di
Perform the flow trace on both units. It will show you if a tunnel is not ready to take the traffic, or if a policy drops the packet...basically any blockage up to Layer-4, plus VPN.
Regards,
Chris McMullan
Fortinet Ottawa