No internet access after changing port

Help
1

I have changed the port that pihole runs on to 8017.
This was due to a conflict with Home Assistant and the emulated hue bridge.
Since changing the lightpd.conf file I get dns lookup errors when browsing the web through a VPN (OpenVPN installed via PiVPN)
As a secondary issue pihole does not block adverts on my android device, S6.

2

Run pihole -d for a debug token. When an ad is blocked, it will be redirected to the Pi-hole. It will request something from either port 80 or 443 of the Pi-hole (depending on if it was HTTP or HTTPS) since we can't change the port when redirecting via DNS.

3

Thanks for taking the time to help.
I've managed to get internet access back, but still no blocking if adds.
Debug token is lwx6b8x18c

4

There looks to be an issue with the IP stack on the Pi-hole. There is an IPv6 address configured in setupVars.conf but it doesn't look like the device actually has an IPv6 address.

Can you check ip addr on the Pi-hole and see if there indeed is an IPv6 address, and also run ping6 2001:4860:4860::8844 to see if there is connectivity to the outside Internet.

5

My pihole is running on an Rpi3.

If I run ifconfig from CL I see an inet6 address.

If I run ping6 2001:4860:4860::8844 I get "Connect: network is unreachable"

It's probably worth pointing out that my ISP provided router does not allow me to set my own DNS.
So I change settings in android WiFi config and still no joy.

6

Upon looking at ifconfig again I think I have only a local ipv6 address?

eth0      Link encap:Ethernet  HWaddr b8:27:eb:a5:5c:dd
          inet addr:192.168.0.33  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::8ff9:8a62:efb3:36cb/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:4799337 errors:0 dropped:48179 overruns:0 frame:0
          TX packets:3727176 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:861777876 (821.8 MiB)  TX bytes:1488046520 (1.3 GiB)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:673222 errors:0 dropped:0 overruns:0 frame:0
          TX packets:673222 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1
          RX bytes:44415254 (42.3 MiB)  TX bytes:44415254 (42.3 MiB)

tun0      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
          inet addr:10.8.0.1  P-t-P:10.8.0.1  Mask:255.255.255.0
          inet6 addr: fe80::2e2e:c4a0:cdb1:f6a9/64 Scope:Link
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:10343 errors:0 dropped:0 overruns:0 frame:0
          TX packets:14589 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:849856 (829.9 KiB)  TX bytes:16961604 (16.1 MiB)
7

Is everything working as should without the VPN ?
Might want to compare below two before and after the VPN is connected on the system thats dialing in:

ip -4 route show

ip -6 route show

8

Everything works ok with no VPN connection, but still see add on my android device.

No VPN connection:

pi@raspberrypi:~ $ ip -4 route show
default via 192.168.0.1 dev eth0  metric 202
192.168.0.0/24 dev eth0  proto kernel  scope link  src 192.168.0.33  metric 202
pi@raspberrypi:~ $ ip -6 route show
2a02:c7f:9202:fb00::/64 dev eth0  proto kernel  metric 202
fd36:feae:edf6::/64 dev eth0  proto kernel  metric 202
fe80::/64 dev eth0  proto kernel  metric 256
default via fe80::9221:6ff:fe7c:5079 dev eth0  metric 202

VPN connected

pi@raspberrypi:~ $ ip -4 route show
default via 192.168.0.1 dev eth0  metric 202
10.8.0.0/24 dev tun0  proto kernel  scope link  src 10.8.0.1
192.168.0.0/24 dev eth0  proto kernel  scope link  src 192.168.0.33  metric 202
pi@raspberrypi:~ $ ip -6 route show
2a02:c7f:9202:fb00::/64 dev eth0  proto kernel  metric 202
fd36:feae:edf6::/64 dev eth0  proto kernel  metric 202
fe80::/64 dev eth0  proto kernel  metric 256
fe80::/64 dev tun0  proto kernel  metric 256
default via fe80::9221:6ff:fe7c:5079 dev eth0  metric 202

It's worth noting that I still see adverts regardless of whether I'm connected to my home VPN.

9

We dont have a crystal ball !
Who is doing what and please explain a little bit better with more details ?
Do you mean you have your Pi-Hole system dial into a VPN and after, none of your home devices can do DNS lookups anymore ?
And stick to one issue at a time as I believe you're still not aware bout this bit:

10

Not really sure what this means?

I'll try to be clearer, if I wasn't.
I'm running a Raspberry pi 3.
I have pi-hole installed
On the same pi I run OpenVPN server installed via PiVPN. This allows me to access my home network externally.
When I setup PiVPN, I told it that my DNS server is

If I am connected to the VPN I see no adverts
If I am notconnected to VPN I see adverts

Specifically on android, I see adverts whether I set the DNS manually or via dhcp in advanced WiFi settings.

To be clear, I can now access the internet and DNS queries are resolved.

I ran pihole -d and reported the debug token as suggested by @DanSchaper
But unfortunately​he didn't give any feedback.

I also reported the

ip -4 route show

ip -6 route show

As you suggested and printed the results.

If anything isn't.clear let me know, just with a bit of respect.

Thanks all

11

Sorry for that.
I just cant make any sense of what you've posted.
Maybe someone else can.