Troubleshooting Tip: No valid upgrade path from Fo...

nevan · 12-19-2025

Description This article describes the error code 'object set operator error, -54 discard the setting' in the IPsec interface when there are identical subnets on both the interface and the remote-IP. Scope FortiGate. Solution Technically, the same su...

nevan · 12-15-2025

Description This article describes a known issue downloading the upgrade path table that causes the error message 'No valid upgrade path' when attempting to upgrade a FortiGate virtual machine. Scope FortiGate VM running FortiOS v7.4.9, v7.6.4, or ea...

nevan · 12-08-2025

Description This article describes the issue of an automation stitch being repeatedly triggered by a system log on a FortiGate device, causing multiple email alerts to be sent. The article provides a step-by-step solution to resolve this issue. Scope...

nevan · 12-04-2025

Description This article describes the 'ztna-ems-tag-negate' option, to allow or deny policies to match traffic when a specified EMS tag is not present on the endpoint. Scope FortiOS 7.6.1+. Solution Firewall policies with EMS TAGs typically evaluate...

nevan · 11-18-2025

Description This article describes the commands and shares the way how to determine if 5G is enabled and actively connected. Scope FortiWifi. Solution FortiWiFi devices with built-in 5G modems allow for monitoring the modem status and radio connectio...

nevan · 12-07-2025

Dear rharms_tarc,Please try increasing ddns TTL, set the monitoring interface, enable if use of public IP if environment supports and adjust the update interval.config system ddnsset ddns-ttl {integer} set monitor-interface set update-interval {integ...

nevan · 12-01-2025

Dear prabhueee35,I would like to recommend you to open a TAC ticket first to verify and get the clarence of the RMA from technical team. Later on it will be transferred to the RMA team when it will be verified that the unit is qualified for the RMA.S...

nevan · 11-24-2025

Dear hvisage1,Please check the admin guide FortiOS version 7.6.3, it supports the NAT66.https://docs.fortinet.com/document/fortigate/7.6.3/administration-guide/245279Also, checked in the lab firewall though not having the same setup or not having any...

nevan · 08-27-2025

Excellent article that was highly needed!

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Troubleshooting Tip: Error 'object set operator error,-54' in the IPsec interface

Troubleshooting Tip : No valid upgrade path error when upgrading FortiGate VM

Technical Tip: FortiGate automation stitch repeatedly triggered by system log

Technical Tip: EMS TAG negation with 'ztna-ems-tag-negate' to deny the traffic without specific TAG

Technical Tip: How to confirm and verify that the 5G is enabled in FortiWifi unit

Re: IPsec Dynamic DNS Addresses Not Updating

Re: RMA procedure to replace faulty Fortigate VM from Fortimanager 7.4.8

Re: IPv6 SD-WAN with multiple FttH ISPs -> PPPoE with DHCP-PD

Re: Troubleshooting Tip: Identifying the FortiGate reboot reasons and what to do next

Troubleshooting Tip: No valid upgrade path from Fo...

Troubleshooting Tip : Essential 'get' commands in ...

Troubleshooting Tip: Essential 'show' commands in ...

Technical Tip: Avoid NAT port exhaustion

Technical Tip: How to upgrade LTE(3G/4G) modem fir...

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