You might set up a Site2Site IPSEC VPN between your central site and
remote FGTs. Using FMG's "VPN Manager" this is pretty easy. Over this
VPN you could also access the remote FGT Web UIs.
Hi, I had exactly the same issue. Reason: In "Policy Objects" ->
"Interfaces" there was an "Interface" as well as a "Zone" defined, which
both mapped to the same physical Interface through their Default
Mapping. Removed the "Zone" and upgrade went fi...