fatal: unable to access 'https://dev.azure.com/xxx': OpenSSL SSL_connect: Connection was reset in connection to dev.azure.com:443

Question

I've been working with a repo in Azure for months without any issue, but recently started getting this error intermittently when I try to update my remotes or push/pull:

OpenSSL SSL_connect: Connection was reset in connection to dev.azure.com:443

If I keep retrying, it will eventually work. No idea what is causing this.

Things I've tried:

• Updated Git
• Turned off firewall
• Tried on a different computer with no issues

Answer 1

This seems to have something to do with IPv6 - you can disable it by doing the following:

1. Go to View Network Connections

   

2. Right click on your current network and select Properties

   

3. Deselect IPv6 Internet Prorotcol Version 6

   

Answer 2

This seems to be related to IPv6. When I disable IPv6, the connection works. When I re-enable IPv6, it's broken again.

I've disabled IPv6 for dev.azure.com by editing my hosts-file. This way, everything works.

C:\Windows\System32\drivers\etc\hosts

# Workaround for git connection errors
# fatal: unable to access 'https://dev.azure.com/MyOrg/my-project/_git/my-repo/': OpenSSL SSL_connect: Connection was reset in connection to dev.azure.com:443
# https://developercommunity.visualstudio.com/t/cannot-connect-to-devazurecom-nor-azuremicrosoftco/1189016
13.107.42.20  dev.azure.com

The IPv4 address of dev.azure.com may change in the future, please verify it and adjust as necessary.

Further Reading

• OpenSSL SSL_connect: Connection was reset in connection to dev.azure.com:443
• Cannot connect to dev.azure.com nor azure.microsoft.com

Answer 3

Problem randomly showed up when everything was working fine the minute before:

$ git push origin master
fatal: unable to access 'https://dev.azure.com/xxx': OpenSSL SSL_connect: Connection was reset in connection to dev.azure.com:443

The cause is unknown (and no longer interested to dig that up) but this is the solution that worked for me:

1. Run in cmd prompt: tracert www.dev.azure.com
2. Prompt shows: Tracing route to l-0011.l-msedge.net [aaa.bbb.ccc.ddd]
3. In Windows, navigate to: C:\Windows\System32\drivers\etc
4. Modify hosts file in Notepad++ (Run as Admin to save).
5. Add line: aaa.bbb.ccc.ddd dev.azure.com

I can push again after.

Further Reading

• Find the IP Address of a Website Using Command Prompt
• git push error: OpenSSL SSL_connect: Connection was reset

Answer 4

This seems to be related to IPv6. When I disable IPv6, the connection works. When I re-enable IPv6, it's broken again.

I can't recommend Grilse's post enough (I don't have enough reputation to leave a comment on it or I would have). I was seeing this error in VS Code and I tried a whole bunch of recommendations in different posts without success.

The moment I tried disabling IPv6 on my network adapter the error went away.

Answer 5

I was the same problem with my repositories but before exchange to github i updating git bash to version 2.33.1 and back to work.

Dont forget update to git version (2.33.1) Disable protocol IPV6 at your Network Properties

Answer 6

This worked for me, still not sure why

git fetch --all;
git pull --all;

now commands like git pull and git push will work.

Answer 7

I'm seeing this in Windows 10. On a whim I went into Network Settings for my internet connection, Network profile, and changed from Public to Private . Git pull worked immediately.

Answer 8

On Windows 10, this worked for me:

git config --global --unset https.proxy

git config --global --unset http.proxy