Activation

I just installed FreePBX 64 bit. I get this message “Activation Error!
Unable to display activation page. Error returned was:
Resolving timed out after 3512 milliseconds” when I try to activate. I have read that the DNS needs to be 8.8.8.8
I have this setting on my Name server. I am not sure if this supposed to be on my FreePBX or not. If so how do I add it.
Sorry if this is a stupid question as I am new to FreePBX.

If you can’t activate, then you probably don’t have access to System Admin where you can change your DNS.

So you can do it from CLI https://wiki.freepbx.org/display/PPS/How+to+set+Network+Settings+from+the+CLI