IPv6 and Windows Firewall profiles on the client
When broken IPv6 causes slow or failing connections, and how the Windows Firewall network profile (Domain, Private, Public) changes what works.
- Level
- Intermediate
- Length
- About 40 minutes
- Contents
- 3 lessons · 1 video · final exam
- Status
- Published · updated 1 Oct 2026
Skills you'll practise
- Recognize symptoms of broken IPv6 and test IPv4 vs IPv6 separately
- Explain why disabling IPv6 is not the recommended fix
- Read the network profile and explain its effect on inbound connections
Course outline
- 1.IPv6 and Windows Firewall profiles on the clientVideo · 5 min
- 2.IPv6 on the clientLesson · 14 min
- 3.Firewall network profilesLesson · 12 min
- 4.Reading IPv6 addresses on a Windows clientLesson · 13 min
- 5.IPv6 and Windows Firewall profiles on the client: knowledge checkKnowledge check · 14 questions
- 6.Slow app starts after a new device arrivesScenario
- 7.Final exam6 questions · passing it completes the course, so people who already know the material can test out
Sources it draws on
The lessons and questions are written from these references, so learners can go back to the original.
- RFC 6724: Default Address Selection for IPv6
- RFC 8305: Happy Eyeballs Version 2
- Microsoft Learn: Guidance for configuring IPv6 in Windows for advanced users
- Microsoft Learn: Windows Firewall profiles (Domain, Private, Public)
- Microsoft Learn: Get-NetConnectionProfile cmdlet reference
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