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Firewall Troubleshooting

Can’t connect to work from home, blocked websites, firewall settings

Cisco Firewall IssuesFirewall MigrationFirewall Rules and NATFortinet IssuesSonicWall IssuesVPN Connectivity
Firewall Troubleshooting: Blocked Traffic, NAT, VPN and MigrationsSection guideHow firewalls decide what to allow, and how to troubleshoot blocked traffic, NAT, VPN tunnels and firewall migrations on FortiGate, SonicWall and Cisco.

Before you change anything

Save the current device configuration and note what you change, so you can roll back.