You might see that the Dropbox Community team have been busy working on some major updates to the Community itself! So, here is some info on what’s changed, what’s staying the same and what you can expect from the Dropbox Community overall.

Forum Discussion

engirah's avatar
engirah
Helpful | Level 5
3 years ago

Received fatal alert: protocol_version

Hi Am suddenly getting below error after using the dropbox API for over 3 years. No Change in Java code(Java 😎 Am using dropbox-core-sdk-3.0.5.jar library Could be there is a change in SSL protoc...
Developers
  • Greg-DB's avatar
    Greg-DB
    3 years ago

    Dropbox recently retired support for TLS 1.0 and 1.1. The Dropbox API servers now only support connections using TLS 1.2. You'll need to update your app/network client/environment to use TLS 1.2 in order to continue making Dropbox API calls.

     

    It looks like you're using the Dropbox Java SDK, so to use TLS 1.2 you'll need to update to at least v3.1.1 of that SDK (or preferably, the latest version which is currently v5.2.0).

chek534's avatar
chek534
Explorer | Level 4

Greg-DB

 

I updated dropbox-core-sdk to 4.0.1 version and still received error:

  Received fatal alert: protocol_version

Greg-DB's avatar
Greg-DB
Icon for Dropbox Staff rankDropbox Staff
3 years ago

chek534 Make sure your platform itself also supports TLS v1.2. Some platforms/frameworks, especially older versions, may not have TLS v1.2 enabled. You may need to refer to your platform documentation for information on configuring that.

About Discuss Dropbox Developer & API

Node avatar for Discuss Dropbox Developer & API

Make connections with other developers

795 PostsLatest Activity: 23 hours ago
194 Following

If you need more help you can view your support options (expected response time for an email or ticket is 24 hours), or contact us on X or Facebook.

For more info on available support options for your Dropbox plan, see this article.

If you found the answer to your question in this Community thread, please 'like' the post to say thanks and to let us know it was useful!