az login stuckk

[gabo89]

Describe the bug

this bug is getting me crazy

az login --tenant --debug

i login by selecting my account and the command stopps at

urllib3.connectionpool: Starting new HTTPS connection (1): login.microsoftonline.com:443

and nothing else happens, what is happening? it suppose to redirect me to select subscription and more but now nothign else happens

Related command

az login --tenant --debug

Errors

urllib3.connectionpool: Starting new HTTPS connection (1): login.microsoftonline.com:443

stuck on that
last comand and nothign else happens

Issue script & Debug output

i login by selecting my account and the command stopps at

urllib3.connectionpool: Starting new HTTPS connection (1): login.microsoftonline.com:443

Expected behavior

after az ogin it should prompt me subscirption like it used

Environment Summary

az version
{
"azure-cli": "2.82.0",
"azure-cli-core": "2.82.0",
"azure-cli-telemetry": "1.1.0",
"extensions": {}
}

$ python
Python 3.13.9 (tags/v3.13.9:8183fa5, Oct 14 2025, 14:09:13) [MSC v.1944 64 bit (AMD64)] on win32

python location

C:\Program Files\Microsoft SDKs\Azure\CLI2\python.exe

Additional context

No response

[yonzhan]

Thank you for opening this issue, we will look into it.

[github-actions]

Here are some similar issues that might help you. Please check if they can solve your problem.

• az login stuck on connecting to login.microsoftonline.com:443 #28548
• az login will not trigger browser login and hangs #26786
• az login not working #32447
• az login hangs #9852
• az login and az --version very slow #27796

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Possible solution (Extracted from existing issue, might be incorrect; please verify carefully)

Solution 1:

Disabling IPv6 can resolve the issue. For example, on Ubuntu, you can disable IPv6 by following the steps outlined in this Stack Overflow post: https://stackoverflow.com/questions/57992691/pip-hangs-on-starting-new-https-connection. Users have reported that disabling IPv6 resolved the issue for them.

Reference:

• az login stuck on connecting to login.microsoftonline.com:443 #28548 (comment)
• az login stuck on connecting to login.microsoftonline.com:443 #28548 (comment)
• az login stuck on connecting to login.microsoftonline.com:443 #28548 (comment)
• az login stuck on connecting to login.microsoftonline.com:443 #28548 (comment)
• az login stuck on connecting to login.microsoftonline.com:443 #28548 (comment)
• az login stuck on connecting to login.microsoftonline.com:443 #28548 (comment)
• az login stuck on connecting to login.microsoftonline.com:443 #28548 (comment)
• az login stuck on connecting to login.microsoftonline.com:443 #28548 (comment)

Solution 2:

Changing the DNS server can also fix the issue. Reliable DNS servers like Cloudflare (1.1.1.1) or Google (8.8.8.8) have been reported to work. You can test this by running the following commands:

nslookup login.microsoftonline.com 1.1.1.1 # Cloudflare
nslookup login.microsoftonline.com 8.8.8.8 # Google
nslookup login.microsoftonline.com # Leave empty to use try DNS server (Comes from ISP -> Router -> Your device)

Reference:

• az login stuck on connecting to login.microsoftonline.com:443 #28548 (comment)
• az login stuck on connecting to login.microsoftonline.com:443 #28548 (comment)
• az login stuck on connecting to login.microsoftonline.com:443 #28548 (comment)
• az login stuck on connecting to login.microsoftonline.com:443 #28548 (comment)

Solution 3:

For Windows users, adjusting IPv6 prefix policies can help. Run the following commands in the command prompt:

netsh interface ipv6 show prefixpolicies
netsh interface ipv6 set prefixpolicy ::ffff:0:0/96 100 4
netsh interface ipv6 set prefix ::/96 60 3
netsh interface ipv6 reset

Reference:

• az login stuck on connecting to login.microsoftonline.com:443 #28548 (comment)
• az login stuck on connecting to login.microsoftonline.com:443 #28548 (comment)

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