Technical Tip: Resolving FortiGate GUI Reseller Selection Issue when appliance has installed SFP/SFP+ transceivers

Description

This article describes a solution to the issue where the FortiGate GUI remains indefinitely loading at the reseller selection step due to a lack of Internet connectivity.

The FortiGate models 80F/81F/90G/91G have Shared Media interfaces, meaning that WAN1/WAN2 cannot be used simultaneously with x1/x2. By default, the x1 and x2 interfaces are members of the aggregate used for FortiLink.

The article provides a step-by-step guide to resolve this issue by configuring the x1 interface to obtain an IP address dynamically through DHCP or statically over CLI.

Scope

FortiGate 80F/81F/90G/91G.

Solution

To resolve the connectivity issue, follow these steps:

• Access the FortiGate over SSH using the internal IP address 192.168.1.99.

• Remove the x1 and x2 interfaces from the 'fortilink' aggregate interface.

config system interface
edit fortilink
unset members
end

• Disable interface x2 to avoid IP conflicts:

config system interface
edit x2
set status down
next
end

• By default, the speed is set to 10 Gbps. If the ISP only supports 1 Gbps, adjust the negotiation speed on the active interface x1 to '1000auto':

config system interface
edit x1
set speed 1000auto
next
end

• Confirm that the interface has obtained an IP address through DHCP and that the default route is installed in the routing table.

• For static IP addressing, it is required to configure the interface settings and the static route:

config system interface
edit x1
set ip x.x.x.x y.y.y.y
next
end
config router static
edit 1
set dst 0.0.0.0 0.0.0.0
set gateway x.x.x.z 
set device x1
next
end

Notes:

x.x.x.x -> IP address.

y.y.y.y -> Subnet mask.

x.x.x.z -> IP address of the default gateway provided by the ISP.

• Verify Internet connectivity by running a PING test:

execute ping-options reset
execute ping 1.1.1.1

• Once Internet access is restored, access the device again through the graphical interface and complete the access-related configuration steps.

Related articles:

Technical Tip: Understanding Shared Media interfaces on the FortiGate

Technical Tip: Reseller option keeps spinning when trying to register to FortiCare through FortiGate GUI

Technical Tip: How to create or delete static routes via CLI on FortiGate

Troubleshooting Tip: Unable to connect to FortiGuard servers