This section details known issues and workarounds in all WS_FTP Server 2025.0 (10.0) releases.

ID

Category

Known Issue Description

22306

Install, Upgrade

Certain anti-virus products interfere with PostgreSQL database platform during the install and upgrade process, causing an error.

To resolve this issue, disable your anti-virus during the install/upgrade process.

The PostgreSQL install/upgrade error is caused by multiple anti-virus products including:
  • Crowdstrike
  • TrendMicro
  • Sophos
  • Cylance Protect
  • Sentinel One (may cause resource exhaustions)

25438

Anti-virus

McAfee Endpoint Security is known to inject outdated DLLs (version 14.00.X of vcruntime140.dll and mscvp140.dll) into the IIS process. This causes a “No products installed” error in the WS_FTP Server Manager and renders the client inoperable.

To resolve this issue, delete the problematic DLLs from the McAfee\Endpoint Security\Threat Prevention folder or uninstall McAfee Endpoint Security.

If removing the anti-virus is not possible, reach out to the McAfee support team to request a process to whitelist the IIS process or an updated McAfee version based on redistributable DLLs version 14.40 or later.

26701

FTPS

WS_FTP Server upgrade requires the FTPS RSA SSL/TLS certificates to have a minimum key length of 2048 bits. Ensure your certificates meet this requirement before continuing.

28259

Web Admin

When a mapped network drive is configured, it does not appear in the Web Admin interface.

To resolve this issue, use the UNC path (for example, \\server\share) instead of the mapped drive letter when configuring folder locations.

28276, 28455

Multi-factor authentication
The command-line utility iftpaddu.exe does not support options to exempt users from Multi-Factor Authentication (MFA) or to reset their current MFA configuration. These operations are available in the Admin interface but not via the command-line utility. When MFA is enabled for WS_FTP Server accounts, the Outlook Add-In log displays the following error message during log on attempts:
Authentication failed: [61] [AHT error#61]

29005

Failover

In a failover configuration, only the first failover node is able to decrypt secrets stored in the shared database. As a result, the secondary node cannot correctly access encrypted data when operating against the common database.

To resolve this issue, manually synchronize the encryption keys between the failover nodes by copying the registry key material:
  1. On the first node, export the following registry key:HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Ipswitch\Common\KeyMat
  2. Import the exported key into the second node.
  3. On the second node, export the same registry key (now containing both keys).
  4. Import this exported key back into the first node.

    Both nodes now contain the required keys and can operate correctly with the shared database

    Important: This workaround applies both when initially configuring failover and when upgrading from a pre‑10.0 (2025.0) version of WS_FTP Server.
Note: This issue is resolved for new failover installations created using the updated setup process in 2025.0.2. Upgrades from earlier versions still require manual registry synchronization