Boot-Time Filter / Leaks when booting Windows.
Author: Stiff-labCreated Nov 21, 2025Updated Aug 13, 2026
Labelsbug
App version
3.8.7
Windows version
Win10 22h2 / 19045.6456
Wireshark displays successful TCP connections despite Boot-Time filter.
40.126.53.18 MICROSOFT-CORP-MSN-AS-BLOCK 2.16.63.57 Akamai International B.V. 23.210.252.238 AKAMAI-AS 20.190.147.5 MICROSOFT-CORP-MSN-AS-BLOCK 23.65.29.168 Akamai International B.V. 40.126.53.15 MICROSOFT-CORP-MSN-AS-BLOCK
I have created user rules for the IPs and it appears that no more connections are being established to these IPs during the boot process. But a boot-time filter should actually work in such a way that it blocks all connections.
Greetings from the West.
Source: henrypp/simplewall