Update palo-alto-networks-11.md

Author: JV0812

docs/integrations/cloud-security-monitoring-analytics/palo-alto-networks-11.md

@@ -220,3 +220,4 @@ import AppUninstall from '../../reuse/apps/app-uninstall.md';
 
 - If you have any issue with Cloud Syslog collection, refer to the [Cloud Source Troubleshooting](/docs/send-data/hosted-collectors/cloud-syslog-source/#troubleshooting).
 - If you are successfully ingesting the logs and if you are unable to see any data in the app dashboards, then ensure [Traffic](https://docs.paloaltonetworks.com/pan-os/11-0/pan-os-admin/monitoring/use-syslog-for-monitoring/syslog-field-descriptions/traffic-log-fields) and [Threat](https://docs.paloaltonetworks.com/pan-os/11-0/pan-os-admin/monitoring/use-syslog-for-monitoring/syslog-field-descriptions/threat-log-fields) fields are in accordance with Palo Alto Networks 11 log format as configured in the [Step 2 of Collection Logs for Palo Alto](#step-2-define-the-destination-for-the-logs).
+- If you have trouble with validating the Sumo Logic certificate due to their OCSP checking logic, try disabling OCSP checking logic in the firewall. If you continue to have issues, contact Palo Alto’s support, and if needed, contact Sumo Logic’s support for the related Palo Alto case number. [Learn more](https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA14u000000wlXXCAY).