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    <title>topic Re: Dropbox throwing SSL errors for some users in Dropbox API Support &amp; Feedback</title>
    <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/Dropbox-throwing-SSL-errors-for-some-users/m-p/20480#M679</link>
    <description>&lt;P&gt;[Moved from "Bug &amp;amp; Troubleshooting" to "API Development"]&lt;/P&gt;

&lt;P&gt;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:&lt;/P&gt;

&lt;P&gt;&lt;A href="https://www.ssllabs.com/ssltest/analyze.html?d=api.dropbox.com&amp;amp;latest" rel="nofollow noreferrer"&gt;https://www.ssllabs.com/ssltest/analyze.html?d=api.dropbox.com&amp;amp;latest&lt;/A&gt;&lt;/P&gt;

&lt;P&gt;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?&lt;/P&gt;</description>
    <pubDate>Thu, 19 Feb 2015 00:16:08 GMT</pubDate>
    <dc:creator>Greg-DB</dc:creator>
    <dc:date>2015-02-19T00:16:08Z</dc:date>
    <item>
      <title>Dropbox throwing SSL errors for some users</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/Dropbox-throwing-SSL-errors-for-some-users/m-p/20479#M678</link>
      <description>&lt;P&gt;Hi&lt;/P&gt;

&lt;P&gt;We've got a few users on iOS (iPhone 6 plus, iOS &lt;img class="lia-deferred-image lia-image-emoji" src="https://www.dropboxforum.com/html/@96BDC0194935973C95B55C70BF23B118/emoticons/1f60e.png" alt=":smiling_face_with_sunglasses:" title=":smiling_face_with_sunglasses:" /&gt; 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:&lt;/P&gt;

&lt;P&gt;"[ERROR] DropboxSDK: SSL Error. Cannot validate a certificate for the host: api.dropbox.com"&lt;BR /&gt;
[WARNING] DropboxSDK: error making request to /1/search/sandbox - (-1012) Error Domain=NSURLErrorDomain Code=-1012 "The operation couldn’t be completed. (NSURLErrorDomain error -1012.)"&lt;/P&gt;

&lt;P&gt;Or:&lt;/P&gt;

&lt;P&gt;CFNetwork SSLHandshake failed (-9806)&lt;BR /&gt;
CFNetwork SSLHandshake failed (-9802)&lt;BR /&gt;
CFNetwork SSLHandshake failed (-9824)&lt;BR /&gt;
NSURLConnection/CFURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9824)&lt;BR /&gt;
[WARNING] DropboxSDK: error making request to /1/account/info&lt;/P&gt;

&lt;P&gt;Any idea what's happening?&lt;/P&gt;</description>
      <pubDate>Wed, 29 May 2019 09:45:05 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/Dropbox-throwing-SSL-errors-for-some-users/m-p/20479#M678</guid>
      <dc:creator>Fahad G.</dc:creator>
      <dc:date>2019-05-29T09:45:05Z</dc:date>
    </item>
    <item>
      <title>Re: Dropbox throwing SSL errors for some users</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/Dropbox-throwing-SSL-errors-for-some-users/m-p/20480#M679</link>
      <description>&lt;P&gt;[Moved from "Bug &amp;amp; Troubleshooting" to "API Development"]&lt;/P&gt;

&lt;P&gt;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:&lt;/P&gt;

&lt;P&gt;&lt;A href="https://www.ssllabs.com/ssltest/analyze.html?d=api.dropbox.com&amp;amp;latest" rel="nofollow noreferrer"&gt;https://www.ssllabs.com/ssltest/analyze.html?d=api.dropbox.com&amp;amp;latest&lt;/A&gt;&lt;/P&gt;

&lt;P&gt;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?&lt;/P&gt;</description>
      <pubDate>Thu, 19 Feb 2015 00:16:08 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/Dropbox-throwing-SSL-errors-for-some-users/m-p/20480#M679</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2015-02-19T00:16:08Z</dc:date>
    </item>
    <item>
      <title>Re: Dropbox throwing SSL errors for some users</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/Dropbox-throwing-SSL-errors-for-some-users/m-p/20481#M680</link>
      <description>&lt;P&gt;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.&lt;/P&gt;</description>
      <pubDate>Thu, 19 Feb 2015 00:25:10 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/Dropbox-throwing-SSL-errors-for-some-users/m-p/20481#M680</guid>
      <dc:creator>Fahad G.</dc:creator>
      <dc:date>2015-02-19T00:25:10Z</dc:date>
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