Github.com times out on M1 Mac but other devices are okay

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spcurtis81 Author

Level 1

8 points

Github.com times out on M1 Mac but other devices are okay

Recently I have been unable to load GitHub.com on my M1 Mac mini.

All other devices on my network can access without issue.

When trying to access from Safari or any other browser such as Chrome or Firefox it just hangs in loading.

If I try a curl from the terminal such as installing Homebrew, I get a 'could not resolve host' error...

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
curl: (6) Could not resolve host: raw.githubusercontent.com

However, if I connect to a VPN, it loads fine.

I tried deleting the DNS servers in the Network settings (I read somewhere this might help) but it didn't change anything.

I checked for Proxies and nothing is checked and there is nothing in the Bypass field.

I'm at a loss here. Can anyone suggest something I need to check?

Posted on Feb 21, 2022 11:13 AM

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Answer 1

Top-ranking reply

James Brickley

Level 5

5,770 points

Feb 21, 2022 12:11 PM in response to spcurtis81

Try adding a manual DNS server. Here are a few of the public DNS servers you can use:

Google

8.8.8.8

Quad9

9.9.9.9

Cloudflare

1.1.1.1

If either of these work, then you have a DNS issue with whatever provider is being assigned by your router via DHCP. Likely your ISP. Consider adding these Public DNS servers to your router and override your ISP's DNS servers. There's a lot to learn about DNS and these big DNS providers typically do a far better job with DNS than an ISP. But I would recommend that you search online for Public DNS to read up on the topic and decide what would work best for your needs.

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Answer 2

Feb 21, 2022 12:12 PM in response to spcurtis81

Try adding a manual DNS server. Here are a few of the public DNS servers you can use:

Google

8.8.8.8

Quad9

9.9.9.9

Cloudflare

1.1.1.1

If either of these work, then you have a DNS issue with whatever provider is being assigned by your router via DHCP. Likely your ISP. Consider adding these Public DNS servers to your router and override your ISP's DNS servers. There's a lot to learn about DNS and these big DNS providers typically do a far better job with DNS than an ISP. But I would recommend that you search online for Public DNS to read up on the topic and decide what would work best for your needs.

Reply

Answer 3

Feb 21, 2022 12:22 PM in response to spcurtis81

I'd offer you to remove all VPN from mac using this guide and try create a new network location.

Check VPN (Virtual Private Network) and third-party software to help resolve network connectivity issues

How to use network locations

Check in safe mode as in safe mode some folders with third party files are disabled - might guide you to the correct answer

Good luck!

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