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Github not accessible

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Level 2

I'm unable to access, getting a server not found DNS error. However, I am able to access it using TPG mobile data connection.Had the same issue few days ago and somehow it magically started to work, but the issue reappeared again today.


Is anyone else having the same issue?

Level 3

Hi Senp,


I can browse github from my TPG ADSL connection. Do you know what DNS you are using? Im using Google DNS My traceroute is below


Traceroute has started…


traceroute: Warning: has multiple addresses; using

traceroute to (, 64 hops max, 72 byte packets


 1  * 192-168-1-1 (  1.774 ms *

 2  10-X-X-X (10.X.X.X)  39.913 ms  36.634 ms  39.728 ms

 3  syd-apt-ros-agr11-be-24 (  39.998 ms  41.125 ms  38.294 ms

 4 (  39.376 ms  41.577 ms  40.195 ms

 5 (  272.457 ms  266.151 ms  237.017 ms

 6 (  290.523 ms  291.251 ms  302.987 ms

 7 (  259.312 ms  323.037 ms  366.019 ms

 8 (  319.639 ms  256.686 ms  353.936 ms

 9  * * *

10  * * *

11 (  488.345 ms  382.180 ms  512.151 ms

Level 2

I contacted TPG and was advised to use DNS instead. I switched to it and was able to access github. Not sure why TPG's DNS won't resolve it correctly.



Level 2

Yep. I have exactly that problem now. Cannnot connect to github via TPG but can when tethering via Telstra.

Level 2

yes i have the exact sam eissue today

Level 3



TPG's DNS servers are as follows:

Primary DNS
Secondary DNS


These settings are in your Windows PC Ethernet Network properties.


Sometimes, if the primary DNS stops working, Windows fail to utilise the secondary DNS setting.


You might want to use the secondary DNS values on the primary DNS settings and see if that works. If not, you can temporarily use Google's DNS settings


Level 2

Thanks Ozone.


Why not use Google DNS always? Do you see any issues? TPG DNS servers seem unstable.

Level 3



To use Google DNS over TPG DNS server is a choice entirely up to you.


Feel free to read through the Google Developers Website on everything you need to know about their Public DNS service.


I suggest you read the FAQ and then explore the other pages at your leisure.


Frequently Asked Questions - Google Public DNS


I hope this helps.

Level 1b

Having the same issue.  But it's sporadic.  Was very cryptic until it became clear it was TPG's fault.