# Pi-hole + Unbound + PiVPN = No ad blocking?

**URL:** <https://discourse.pi-hole.net/t/pi-hole-unbound-pivpn-no-ad-blocking/39236>\
**Category:** Community Help\
**Created:** [October 10, 2020, 2:57am UTC](https://discourse.pi-hole.net/t/pi-hole-unbound-pivpn-no-ad-blocking/39236 "2020-10-10T02:57:18Z")\
**Posts on this page:** 1\
**Showing post:** 5

<div class="post-metadata">

**Author:** ![Bucking\_Horn](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/bucking_horn/32/18719_2.png) [@Bucking\_Horn](https://discourse.pi-hole.net/u/Bucking_Horn)\
**Post date:** [October 10, 2020, 4:22pm UTC](https://discourse.pi-hole.net/t/pi-hole-unbound-pivpn-no-ad-blocking/39236/5 "2020-10-10T16:22:11Z")

</div>

Your network isn't using Pi-hole as DNS server.  
It's using the device at _`2600:<redacted>:6500::1`_, likely your router, thus bypassing Pi-hole.

This may be the case because Pi-hole isn't aware of its correct IPv6 address because your IPv6 prefix has changed (likely by your ISP, from _`2600:<redacted>:5800`_ at the time of Pi-hole's installation to _`2600:<redacted>:6500`_ now):

```auto
*** [DIAGNOSING]: Setup variables
    IPV6_ADDRESS=2600:<redacted>:5800:<redacted>:f3d1

*** [DIAGNOSING]: Name resolution (IPv6) using a random blocked domain and a known ad-serving domain
[✗] Failed to resolve sm3na.com via Pi-hole (2600:<redacted>:5800:<redacted>:f3d1)

```

You could consider to [Use IPv6 ULA addresses for Pi-hole](https://discourse.pi-hole.net/t/use-ipv6-ula-addresses-for-pi-hole/2127).

---

_[View the full topic](https://discourse.pi-hole.net/t/pi-hole-unbound-pivpn-no-ad-blocking/39236)._