Macbook wont browse after deleting openDNS

[taylorfturner]

I deleted openDNS from my Macbook Pro 2012 (running osx sierra) earlier today. Now trying to browse the internet and the computer simply times out and says "There is no internet connection". I have run the diagnostics and assistant on mac and it says there are no issues. 

I flushed the DNS cache through terminal command  ~sudo killall -HUP mDNSResponder. Also, deleted the wifi connection from system preferenes > network.    Also, renewed the DHCP lease.

All that to say that I haven't figured this out... HELP!!!

[rotblitz]

A computer or other networking device needs DNS, always, no matter what DNS!  DNS is one of the most important components of the internet, not only for browsing.  It seems you left your computer without any DNS, this looking like no internet connection.  Or what DNS did you replace OpenDNS with when you removed it?

"I flushed the DNS cache through terminal command  ~sudo killall -HUP mDNSResponder. Also, deleted the wifi connection from system preferenes > network.    Also, renewed the DHCP lease."

What useless time wasting activities!  Better have a tea instead next time...  This helps more.

[taylorfturner]

I just left the DNS to the mac defaults. Thoughts on where i should go from here? 

I am no expert on networks or internet connectivity configuration. Thanks for the help and understanding in advance. 

[taylorfturner]

since I am on comast, these are the defaults that are used on my WIFI connection:

IPv4 DNS Servers

Primary DNS: 75.75.75.75

Secondary DNS: 75.75.76.76

[rotblitz]

Fine, if you configured these resolver addresses, either by obtaining them automatically via DHCP or by explicitly configuring them, then your problems should have gone.  Time to have a tea... :)

Still having problems?  Then post the complete plain text output of the following diagnostic command from the Mac here:

nslookup whoami.akamai.net.

[taylorfturner]

the below out in terminal while in Sys Preferances > Network Status Connected: Wi-Fi connected to "network_name" and has the IP address of "ip_address".

full output is as follows: 

;; connnection timed out; no servers could be reached

[rotblitz]

Yep, no DNS is currently configured on your Mac. You only removed OpenDNS, but didn't configure some other DNS.

Follow these instructions: 
https://support.opendns.com/hc/en-us/articles/228006927 
but use the Comcast resolver addresses instead of the OpenDNS resolver addresses.

[taylorfturner]

Thanks for the link and thoughts; however,  I have complete these instructions to a T multiple times already with no success.

Any thoughts on what may be the issue? 

[rotblitz]

I say it again: your computer has no DNS.  What is the output of:

nslookup whoami.akamai.net. 75.75.75.75

If this is still the same that no servers could be found, try with configuring your router's LAN IP address as the only DNS server address on the Mac.

[taylorfturner]

So the result of that command is the same: no server could be found. So i set the only DNS server address as 10.0.0.1 (router's IP). I ran the following command and alas: no servers could be found. 

nslookup whoami.akamai.net. 10.0.0.1

[rotblitz]

Then you don't have a TCP/IP connection over WLAN.  You must have destroyed something.  A TCP/IP connection consists of an IP address like 10.0.0.x, a subnet mask like 255.255.255.0, and a gateway address like 10.0.0.1.  And a DNS address, of course.  Visit an Apple forum to get an idea how to recover your connectivity, or connect your computer with an Ethernet cable.  I cannot help you with this, because I do not have enough Mac experience, and this forum is not right for this kind of problem.  It is not related to OpenDNS.

[taylorfturner]

Roger . . . Thanks for the thoughts and direction. 

Best.