Networking
Firewalls & Routing Troubleshooting
Browse issue-specific guidance for Firewalls & Routing.
- Application publish rule works by IP not FQDN
- Edge firewall firmware upgrade resets one custom application rule
- Firewall geo-block policy stops vendor access from approved country range
- Firewall HA pair stays synchronized but secondary fails takeover test
- Firewall HA pair syncs config but not session state
- Firewall rules present but traffic still blocked
- Geo block enabled but approved vendor traffic also blocked
- Inter-VLAN routing works for ping but not for HTTPS sessions
- New ISP circuit installed but outbound policy still uses old WAN
- Outbound SMTP relay blocked because egress policy matches wrong object group
- Port forward works externally but internal hairpin access fails
- Published app works internally but external redirect loop persists
- Route-based tunnel carries traffic one way only after ISP failover
- Router rebooted and static routes disappeared
- Site to site tunnel up but only one subnet passes traffic
- Site-to-site VPN tunnel shows up but traffic returns through wrong route
- Static NAT entry published correctly yet source IP logging shows proxy address
- Static route added but traceroute still follows default path
- Web filter category update blocks line-of-business app download endpoint