Network · low

How to fixIPV6-CONNECTIVITY-FAIL

IPv6 connectivity failure

What this error means

IPv6 connectivity failure is a low-severity network adapter issue. The system has no IPv6 connectivity while IPv4 functions normally. Modern applications and services increasingly require IPv6 (Microsoft services, Google, gaming platforms). IPv6 failure causes slow connection initiation as apps fall back to IPv4, and some services may be inaccessible or degraded. Windows shows 'No Internet access' for IPv6 in Network Status. See the troubleshooting steps below for the fix.

Before you begin

Save open work and back up important files. Use instructions for your exact device and software version. If Windows cannot start, see the startup guide.

Work through these checks

0 of 3 complete
01Enable IPv6 on router if available
  1. Enable IPv6 on router if available
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

Browse related errors
02Contact ISP about IPv6 support
  1. Contact ISP about IPv6 support
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

Browse related errors
03Reset IPv6 stack with netsh
  1. Reset IPv6 stack with netsh
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

Browse related errors

Possible causes

  • Router not supporting IPv6
  • ISP not providing IPv6
  • Windows IPv6 stack misconfiguration