Simplewall v3.9.1, a maintenance pre-release published by developer Henry++ on July 22, 2026, fixes critical issues caused by the previous v3.9 update, particularly addressing svchost.exe notification spam and IGMP alert loops. The update introduces a new traffic statistics feature that displays TCP download and upload speeds, as well as total bytes in the Connections tab, enhancing user experience. Despite resolving these issues, users are advised to be cautious as it remains a pre-release version, meaning further iterations may occur before a stable build is released. Simplewall is a lightweight, open-source tool that manages network activity on Windows, supporting various Windows versions

Simplewall v3.9.1 Fix: Ends svchost Spam, Adds Traffic Stats

Simplewall v3.9.1 is a maintenance pre-release published by developer Henry++ on 22 July 2026 that addresses critical regressions introduced by the v3.9 major update one day prior. The build resolves a notification loop where svchost.exe triggered popups every ten seconds and eliminates IGMP spam by adding an IsExcludeInbound configuration option to suppress alerts from Windows' own WFP filters. New traffic statistics now display download and upload speeds plus total bytes for TCP connections in the Connections tab, following a contributed pull request. Users experiencing the v3.9 notification regressions should update, though the pre-release tag suggests waiting for a stable build for general production environments.

Simplewall v3.9.1 Fix: Ends svchost Spam, Adds Traffic Stats @ NT Compatible