nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

Child Item

Dropbox throwing SSL errors for some users

Fahad G.

We've got a few users on iOS (iPhone 6 plus, iOS 8) that have been complaining that Dropbox for them isn't working. Upon inspection, it seems it's failing on all SSL communication with errors such as:

"[ERROR] DropboxSDK: SSL Error. Cannot validate a certificate for the host: api.dropbox.com"

[WARNING] DropboxSDK: error making request to /1/search/sandbox - (-1012) Error Domain=NSURLErrorDomain Code=-1012 "The operation couldn’t be completed. (NSURLErrorDomain error -1012.)"

Or:

CFNetwork SSLHandshake failed (-9806)

CFNetwork SSLHandshake failed (-9802)

CFNetwork SSLHandshake failed (-9824)

NSURLConnection/CFURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9824)

[WARNING] DropboxSDK: error making request to /1/account/info

Any idea what's happening?

Find more posts tagged with

API

Abuse

Comments

Greg-DB

[Moved from "Bug & Troubleshooting" to "API Development"]

Thanks for the report. Have you been able to reproduce this issue yourself? The API, on api.dropbox.com, is being served with a valid certificate:

https://www.ssllabs.com/ssltest/analyze.html?d=api.dropbox.com&latest

That being the case, if this isn't happening for all users, it sounds like there may be something device-specific preventing these in particular from verifying the certificate. Do you know if these devices are jailbroken by any chance? Or maybe these users are behind a captive portal or are on some network that blocks Dropbox?

Fahad G.

Thanks Greg, after a thorough investigation, it seems this happens usually when the user's Wifi connection is poor. We were able to get around this by retrying a few times before giving up.