ERR_SSL_PROTOCOL_ERROR - for specific agent

[JOSEPH DELAI]

Bula / Hello

a specific user who has a Macbook Pro and uses both Safari and Chrome, has been getting this error:

This site can’t provide a secure connectionatlassian.net sent an invalid response.
ERR_SSL_PROTOCOL_ERROR

The rest of our users use Windows 10 with IE or Chrome and they are working perfectly fine. Hence we need some help to resolve this. We have tried clearing the cookies for atlassian.net, with no luck. 

appreciate any assistance you can provide.

Thanks

Joseph

[Gonchik Tsymzhitov · Accepted solution]

That one will be helpful

https://comodosslstore.com/blog/easily-fix-err-ssl-protocol-error-on-chrome.html

[JOSEPH DELAI]

thank you very much

[Elton Williams]

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[Robert Hawk]

It sounds like the issue is isolated to that MacBook rather than Atlassian itself. I'd check the Mac's date and time, disable any VPN, proxy, or antivirus SSL filtering, clear the SSL state, and test in a new macOS user profile or an incognito window. Updating Safari, Chrome, and macOS can also help. I ran into a similar browser-specific SSL problem while trying to access Playfy TV, and refreshing the network settings fixed it, so it may be worth looking at the Mac's local configuration instead of the Atlassian account.

[Lucila Morgan]

Thank you for the detailed information. Since the issue is affecting only one specific MacBook Pro user across both Safari and Chrome while other users can access the site normally, it is likely related to the local device or network configuration rather than the Atlassian service itself. Please ask the affected user to visit netmirror and verify whether SSL inspection, certificate trust, or network policies are impacting the secure connection. If the issue persists after checking netmirror, please let us know the results along with the macOS version and any security software in use so we can investigate further.

[Nick]

I’ve run into this SSL error before on macOS too, especially when testing media and streaming platforms. Sometimes it’s just the system certificates or network cache causing it. After updating macOS and switching my test server to a VPS in Singapore, the issue disappeared — connections became stable for both Safari and Chrome.

[Jhon Smith]

Thanks for sharing that, good to know it’s not just a browser issue. I’ve noticed similar SSL errors when testing stream delivery on older macOS versions too. Seems like using updated certificates and a reliable VPS host really makes a difference, especially for media or video-heavy sites.

[Jessica Howe]

I also got one helpful resource for the error solution, you can also check out the detailed article for the error fix at:- https://certera.com/blog/how-to-fix-err-ssl-protocol-error-in-chrome/.