FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.


List of most popular articles related to Troubleshooting

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Troubleshooting Tip : First steps to troubleshoot connectivity problems through a FortiGate with sni...
Troubleshooting Tip : Using PING options from the FortiGate's CLI
Troubleshooting Tip : How to use the FortiGate sniffer and debug flow in presence of NP2 ports
Troubleshooting Tip : Monitor CPU and Memory on a FortiGate
FortiGuard Web Filtering : Category and Classification numbers (FortiGate configuration or troublesh...
Troubleshooting Tip : New CLI filtering commands to debug VPN IPSec in FortiOS 4.0 and 4.0MR1
Troubleshooting Tip : Error message "Interface switch is in use" or "Interface internal is in use" o...
Traffic shaping in FortiOS v4.0, configuration and troubleshooting
Troubleshooting Tip : message 'invalid compressed format' during TFTP procedure
Troubleshooting Tip : reading log events from the FSAE DCagent installation log file
Troubleshooting tips for FortiOS routing (RIP, OSPF, BGP, static routes, ECMP)
Troubleshooting Tip : Using the FortiGate sniffer on VLAN interfaces
Troubleshooting Note : FortiGate HA synchronization messages and cluster verification steps
Troubleshooting Note : Fortigate HA message "HA master heartbeat interface lost neighbor information...
Troubleshooting performance issues when FortiGuard Web Filtering is enabled - Low source port
Antivirus update troubleshooting tips
RBL Troubleshooting
Troubleshooting FortiGuard
Fortigate Hardware Troubleshooting guide
Troubleshooting Tool : Using the FortiOS built-in packet sniffer
Troubleshooting Tip : Packet capture ( CLI sniffer ) best practice
Troubleshooting PCMCIA modems
VPN IPSec Tips and Tricks - FAQs
Configuration best practice and troubleshooting tips for a FortiGate in Transparent mode
Debugging IKE - Information to gather when troubleshooting
Verifying and troubleshooting AV & IPS updates status and versions
Initial troubleshooting steps for LACP (Link Aggregation - 802.3ad) on a FortiGate
Troubleshooting Tip : Resolving FDS Communication Issues (FortiGuard Distribution Servers)
Basic Troubleshooting and fine tunning the antispam solution on the FortiGate
FortiGate Troubleshooting Guide - Technical Support Requirements
Troubleshooting layer2 switches connected to FortiGate devices in HA cluster