Check report and chart settings

Resolving hostnames usually takes a long time. If the DNS server is slow or does not support reverse DNS, report generation might hang. Check that Resolve Hostname is disabled:

• In Reports Settings tab > Advanced Settings, check that Resolve Hostname is not selected.
• In the Chart Library, check that Resolve Hostname is set to Disabled.

If you do not need to show all results, specify a lower maximum number of entries:

• In the Chart Library, check that the chart's Show Top (0 for all results) is not set too high.

  Setting this field to 0 for all results causes FortiAnalyzer to list all logs for the chart.