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wcruvinel
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Staff
‎11-19-2025
Last activity: Nov 19, 2025 11:13:51 AM
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Technical Tip: FTP Passive Mode (EPSV) fails after upgrading to v7.2.12 and v7.4.9

10-15-2025
Description This article describes an issue where FTP passive mode using EPSV fails after upgrading to v7.2.12 and v7.4.9 due to a session helper behavior change. Disable the FTP session helper and allow high TCP port ranges explicitly in the firewal...

Troubleshooting Tip: Authentication loops occur in ZTNA connections requiring SAML authentication

10-06-2025
Description This article describes an issue where ZTNA connections using SAML authentication may experience authentication loops when FortiClient establishes multiple sessions with inconsistent cookies. Scope FortiGate v7.4.8, any FortiClient from v7...

Troubleshooting Tip: FTPS file transfer is not working

10-06-2025
Description This article describes a situation with FortiGate units running FortiOS 7.2.10 and later when operating in Flow mode with IPS or Deep Inspection enabled, and the FTPS file transfer is not working. When using explicit FTPS, after the TLS A...

Troubleshooting Tip: High CPU usage in the 'user' space every two hours

08-31-2025
Description This article describes high CPU usage in the 'user' space every two hours, causing outages. The issue is triggered after upgrading to v7.6.2 and v7.6.3 and is caused by a software issue. Scope FortiGate v7.6.2, and v7.6.3. Solution Sympto...

Technical Tip: High CPU usage and wad crash (signal 11) after upgrade to FortiOS 7.4.8

08-29-2025
Description This article describes an issue where the WAD process may crash with a segmentation fault (signal 11) related to the function 'wad_find_fwdsvr_by_key' after upgrading to FortiOS 7.4.8. Scope FortiGate, FortiOS 7.4.8. Solution Symptoms: Af...
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