Azure devops https timeouts

Question

Azure devops https timeouts

Nils Denning Rasmussen 0

Hi,

We're using Azure DevOps and have several scripts that make HTTPS requests to retrieve information from our repositories. Everything was working reliably until earlier this week, but we’ve recently started experiencing intermittent timeouts—sometimes affecting up to half of the requests.

We’ve also noticed that Git commands (e.g., git pull) exhibit the same issue when repositories are cloned via HTTPS. However, when using SSH, the operations complete without any problems.

We've tested this across multiple computers and networks, all showing the same behavior. Our software has been running reliably for years without encountering this issue, so we’re wondering if there have been any recent changes on Azure’s end that could be causing this, or if there are any known service issues affecting HTTPS connections.

Any insights would be greatly appreciated.

Bodapati Harish 400 Reputation points Microsoft External Staff

2025-04-28T06:04:15.3333333+00:00
Hi Nils Denning Rasmussen,

The issue with HTTPS requests timing out in Azure DevOps, while SSH works fine, is likely due to a change requiring Server Name Indication (SNI) for HTTPS connections. This affects your scripts and Git commands like git pull across multiple computers and networks.

Below are the few steps to fix the issue:

Test with curl -v https://dev.azure.com. If it shows “connection timed out” or “SSL error,” it’s likely an SNI issue.

Switch to SSH for now, since it’s working. Add SSH keys in Azure DevOps under User Settings > Security > SSH Public Keys.

Update Git to the latest version. Then run git pull to check if it works.

For scripts, if using Java, add -Djsse.enableSNIExtension=true. Ensure other script libraries are updated.

Check https://status.dev.azure.com/ for service issues. If it’s still not working, share error messages from curl or GIT_CURL_VERBOSE=1 git pull

I hope this helps! Let me know if you need any further clarification, and I’ll be happy to assist you.
Bodapati Harish 400 Reputation points Microsoft External Staff

2025-05-02T08:08:29.6933333+00:00

Hi Nils Denning Rasmussen,

We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution, please do share that same with the community as it can be helpful to others. Otherwise, please respond with more details and we will try to help.

Your answer

Bodapati Harish 400 Reputation points Microsoft External Staff

2025-04-28T06:04:15.3333333+00:00

Hi Nils Denning Rasmussen,

The issue with HTTPS requests timing out in Azure DevOps, while SSH works fine, is likely due to a change requiring Server Name Indication (SNI) for HTTPS connections. This affects your scripts and Git commands like git pull across multiple computers and networks.

Below are the few steps to fix the issue:

Test with curl -v https://dev.azure.com. If it shows “connection timed out” or “SSL error,” it’s likely an SNI issue.

Switch to SSH for now, since it’s working. Add SSH keys in Azure DevOps under User Settings > Security > SSH Public Keys.

Update Git to the latest version. Then run git pull to check if it works.

For scripts, if using Java, add -Djsse.enableSNIExtension=true. Ensure other script libraries are updated.

Check https://status.dev.azure.com/ for service issues. If it’s still not working, share error messages from curl or GIT_CURL_VERBOSE=1 git pull

I hope this helps! Let me know if you need any further clarification, and I’ll be happy to assist you.
Bodapati Harish 400 Reputation points Microsoft External Staff

2025-05-02T08:08:29.6933333+00:00

Hi Nils Denning Rasmussen,

We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution, please do share that same with the community as it can be helpful to others. Otherwise, please respond with more details and we will try to help.

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Azure devops https timeouts

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