For many years we have been using ODK Collect on Android tablets with great pleasure.
Recently our server administrator started using SSLProtocol +TLSv1.2 +TLSv1.1 (instead of Tls1) for security reasons.
From that moment on we had an “Generic exception: No peer certificate” error uploading files to our Unix RedHat 6.10 server.
We are using ODK Collect v.1.17.2 on Android devices (tablets and smartphones).
For security reasons we can not return to TLS1.
Does this error sound familiar?
Is there a solution available!
Welcome to the ODK forum, @franksantegoets! When you get a chance, please introduce yourself here. I'd also encourage you to add a real picture as your avatar because it helps build community.
"No peer certificate" is generally a problem with the server certificate. Here's what I would try.
Using the phone's browser, navigate to the server website and see if that works.
If you are using a very old Android version, it might be good to upgrade to a more recent version with better support for certs. If you can't upgrade, try to find a more recent device and see if that works better.
I wanted to highlight that ODK Collect v1.23 now enables TLSv1.2 for older Android versions. It sounds like @franksantegoets tried newer devices and still had problems so this may be a different issue but in case anyone runs into this with an older Android device, Collect v1.23 should fix it.