On my previous post I wrote about how an unmanaged layer 2 switch is possibly the culprit of AP failures. My solution is to connect the APs directly into the Fortigate firewall. Since our topology is simple it only requires a simple solution. This post I will walk through that solution step by step. There is already an offical document from Fortinet on how to do so. However, it only explains how to connect 1 AP to the Fortigate....
I was troubleshooting the wireless network for a remote office because lot of users were complaining the WiFi is unstable and their devices got randomly disconnected. I checked the log and found out some APs are disconnected from the controller due to “Control message maximal retransmission limit reached”. And I came cross this document from Fortinet: https://kb.fortinet.com/kb/documentLink.do?externalID=FD40970 These messages imply that the keep alive packets ‘ECHO REQ (FGT)’ and ‘ECHO RESPONSE (FAP))’ were not successful or complete....