This article describes how to troubleshoot FortiManager map view error. Here are the steps to troubleshoot, if any of the features are shown below error.
In FortiManager, there is a list of features that are able to use the Map View, which is on Device Manager > SD-WAN Monitor >AP Monitor and VPN Monitor.
Step 1: Make sure to have the correct compatibility between the FortiGate and FortiManager.
Step 2: FortiManager should have an internet access.
Step 3: DNS should be working and able to resolves below domain:
Step 4: Mapserver test should be successful:
# diagnose system mapserver test
Step 5: Should contain signed Fortinet SUBCA, CA Certificate in FortiManager.
If web proxy is configured, make sure it is the same for step 2 and 3.
If the issue still persists kindly share the execute tac report together with all output from the steps for TAC to troubleshoot further.