Back on the non working FortiExtender's challange

[gokiwi64]

Hello,

I have posted before regarding our FortiExtenders not working but that didn't go anywhere so will try again (If this doesn't work they are going in the bin !!!).

So we have a Fortigate pair (100F in HA) running 7.4.7 and 3 x FortiExtenders (311F) running 7.6.2.

The FortiExtenders are "authorised" and in LAN Extension mode.

The IPSEC tunnel is up.(according to VPN -IPSEC Tunnels on the Fortigate)

I have security policies allowing the FEX's to our "trust" network as well as Central SNAT configured allowing the FEX's to out trust network.

I have remote admin access to the FEX's.

The FEX's are being "powered" from Port4 (no network just POE)  - they are connecting over LTE.

Any device connected to Port 1,2 or 3 on the FEX never gets a DHCP address and therefore cannot communicate with our "trust" network.

So the FEXs are connected to the 100F but a device attached to the FEX cannot communicate with anything upstream as it is not getting a dhcp address.

Would really appreciate some help from those far smarter than myself .

Regards