Wireguard - No internet access with PiHole Topic is solved

[uwjhn]

Hi,

yep it's actually a behavior of PiHole. I fixed it for myself by changing PiHole DNS Settings to > Listen on all interfaces, permit all origins

This doesn't do the trick for. Still no internet access via VPN (Wireguard). Using a Raspberry Pi 4B, dietpi, pi-hole, ... all installed with dietpi-software UI. Ip forwarding is on (not changed by me)
Any other tips?

[Joulinar]

can you check using wg command if VPN connection was established

[uwjhn]

Can't check it now, but the connection must be established, as I was able to SSH to the Pi.
Today I also needed to set back pi-hole settings to "Listen only on interface eth0", as I had connection issues in my network and pi-hole didn't seem to block anything with Listen on all interfaces, permit all origins"

[Joulinar]

Listen on all interfaces, permit all origin is needed, otherwise PiHole will not react on request coming from VPN interface.

[diggidre]

Same problem here. Must exist since latest updates, a couple of weeks ago with another setup it was working out of the box.
With active Wireguard connection I can reach the Pi itself but hothing behind, the traffic won't get routed past it.
You will have to set to listening only on eth0 or whatever your interface name is in PiHole settings. For now after PiHole installation it's set to only allow traffic that is 1 Hop away not further.
On top I did pivpn -d for debug mode and then during the test it asks you to activate IP forwarding.
Really this was driving me nuts the last couple days but finally it's working again with PiHole in combination with Wireguard

[Joulinar]

Yes if you are using PiVPN, you would need to set IP forwarding manually. This would not be needed if you install WireGuard directly from DietPi Software Catalog.