All Vlan lost internet access pfSense

Networking & Firewalls
1

Hi,

On pfSense, Is it normal that I can ping 8.8.8.8 but not google.com?

image
image1153×683 29.3 KB

I come home 2 days ago to discover that all my vlan are no longer able to connect to the internet. They all can ping 8.8.8.8 but not google.com
image
image1158×608 24.9 KB

DHCP is enabled but I cannot figure out why it will stopped working when I come back from holiday.

Thank you all in advance

2

This is a DNS issue. Make sure the DNS service is up and your upstream DNS servers are accepting requests in System → General settings on pfsense.

1 Like
3

The DNS is enabled for all interfaces

image
image1154×935 91.7 KB

In System → General settings I have the following:
image
image1155×918 85 KB

4

I would untick ‘DNS Server Override’ then pfsense will use the dns servers you specified.

What happens if you do an dns lookup under diagnostics

Are you blocking dns queries to the internet ?

5

image
image1153×781 32.8 KB

All seem ok. I am not blocking DNS queries no.
I also untick ‘DNS Server Override’ but nothing changed

Thank you

6

why do you have 90.255.255.90 as a DNS? this is Vodafone service in the UK.

my table:

image
image1142×168 3.76 KB

7

Restart dns resolver service

What are the dns servers on the machine if you run ipconfig /all. Are they pointing to your pfsense vlan ip address

Do you get correct responses back on the machine if you run nslookup ?

Can you post the firewall rules for the vlan network

8

I managed to resolve the problem. For some strange reason, 1 of my interfaces cause this chaos. After disabling it, all is back to normal.

Thank you all for your help