Troubleshooting Tip: Error Integrating FortiAP-23JK and 231K with FortiGate E Series

Description

This article describes how to resolve the issue of FortiAP-231K not connecting to FortiGate E series, and provides a solution to the problem, including the necessary configuration and troubleshooting steps.

Scope

FortiAP-23JK and FortiAP-231K, FortiGate E Series.

Solution

To resolve the issue of FortiAP-231K not connecting to FortiGate E series, follow these steps:

1. Ensure FortiGate E Series is using v7.4.6 or higher.
2. Ensure the FortiGate has the DHCP server enabled on the interface, as described in this document: Configuring the FortiGate interface to manage FortiAP units. Make sure also that the interface is enabled with Security Fabric Connection to allow CAPWAP traffic.
3. Update the FortiAP-231K or FortiAP-23JK to v7.6.2 build 972 or v7.4.6, as these versions resolve the issue of the FortiAP not connecting to the FortiGate E-series. 

If the issue is still present, disable CAPWAP offloading on the FortiGate and reconnect.

config system global
    set capwap-offload disable
end

Note: FortiGate E-series models have limited FortiAP capacity (e.g., 80E supports 16 FortiAPs in tunnel mode / 32 total FortiAPs). Exceeding this shows fewer FortiAPs than expected.

Related article:

Technical Tip: How to get advice about recommended FortiAP software release