cannot access some website through fortigate unit

[CAD]

Hello All,

I am running FG200D (5.2.10)

we are facing issue , we are not able to access some website through fortigate unit i got the following message in web browser "DNS_PROBE_FINISHED_NXDOMAIN"

I had exempted this sites in the "web profile" and ssl inspection, but the problem still persist.

Note : when assign  Google DNS(8.8.8.8) to the "NIC" I can  access site.  

please advise me accordingly.

Thanks 

[hmtay_FTNT]

Hello CAD,

Are you using an internal DNS server? Can you send me your configuration file and a packet capture? You can PM me the files. Please let me know which policy ID are you using too. Thanks.

HoMing

[CAD]

Thank you for reply,

The  DNS of ISP caused this problem, Now working well.

Thanks

[hmtay_FTNT]

Okay! Good to know. No worries.

[Marwan]

Please can you explain how you solved it ?

[Marwan]

I have same issue now

[hbac]

Hi @Marwan,

You can use a different DNS server. Preferably 8.8.8.8. 

Regards,