iphlpsvc: what the IP Helper service does and whether to disable it

NetworkProUndo: YesUpdated View as Markdown

Short answer

Updated

IP Helper provides IPv6 tunnel connectivity (6to4, ISATAP, Teredo, IP-HTTPS) and port proxying. This tweak disables it. It sets the iphlpsvc service to Disabled.

In the app
Disable IP Helper (Advanced)PRO
Service

iphlpsvc IP Helper

Startup typeAutomaticDisabled

What the switch writes. Your current value may differ.

What it does

IP Helper provides IPv6 tunnel connectivity (6to4, ISATAP, Teredo, IP-HTTPS) and port proxying. This tweak disables it.

In the app the switch is called "Disable IP Helper (Advanced)", described there as: Shuts down tunnel/QoS helpers; lowers background route churn (may affect VPNs).

When it helps, and when it hurts

When it helps

  • PCs with plain IPv4 or native IPv6, where no tunnel is in use.

When it hurts

  • Xbox Live networking over Teredo, some VPNs, DirectAccess and netsh port proxy rules stop working.

What it writes

Exactly what the switch changes, read from the app's source. Switching it off is what the app writes when you turn the tweak off again.

Windows services the switch changes: their startup type.
ServiceWith the tweakSwitching it off
iphlpsvcIP HelperDisabledAutomatic

From the app's source (iphlpsvc_off.hpp), app 2.0.0, checked .

The same change by hand

You do not need the app for this one. These commands make the changes from the table above. Run them in a Command Prompt opened as administrator, and make a restore point first.

Make the change · CMD
sc config "iphlpsvc" start= disabled
Put it back · CMD
sc config "iphlpsvc" start= auto

How to undo it

In the app: Yes

Switching it off sets a standard Windows value, which may not be exactly how you had it.

Switch the tweak off in Frozen Tweaks. It sets iphlpsvc to Automatic.

Changing several settings at once? The app's Make a restore point button, on every plan, makes a Windows restore point before you start.

Verdict

Leave it on if you use the Xbox app's multiplayer, WSL port forwarding or a VPN that needs it.

Questions

What does the "Disable IP Helper (Advanced)" tweak change in Windows?
It sets the iphlpsvc service to Disabled.
Is "Disable IP Helper (Advanced)" safe to switch on?
Leave it on if you use the Xbox app's multiplayer, WSL port forwarding or a VPN that needs it. The main cost: Xbox Live networking over Teredo, some VPNs, DirectAccess and netsh port proxy rules stop working.
How do I undo it?
Switch the tweak off in Frozen Tweaks. Switching it off sets a standard Windows value, which may not be exactly how you had it.
Is "Disable IP Helper (Advanced)" free in Frozen Tweaks?
It is part of Frozen Pro and Elite. You can also make the change by hand with the values on this page.

In the app

Switch
Disable IP Helper (Advanced)
Category
Network
Plan
Pro
Undo
Yes

See it in the catalog

More tweak explainers

Written by

Founder of Frozen Tweaks, based in Hamburg, Germany. Publishes settings guides for competitive games on his YouTube channel, Frost LIVE.

In the app

Category
Network
Plan
Pro
Undo
Yes

See it in the catalog

Frozen Tweaks

Free for Windows 10 and 11

58 tweaks free, each with an undo switch. Never edits game files.

v2.0.0 · 6.4 MB · Windows 10 and 11, 64-bit · free account, no payment details

Or type frozentweaks.com on your PC.

The free Windows app for competitive games.

58 tweaks free, each with an undo switch. Never edits game files.

See all 177 tweaks

v2.0.0 · 6.4 MB · Windows 10 and 11, 64-bit · free account, no payment details

Frozen Tweaks runs on Windows. Send the link to your PC and download it there.

Or type frozentweaks.com on your PC.