Out of a sudden, I'm getting "can't I establish a secure connection" on all my devices. I tried all the solutions in this page "https://www.dropbox.com/en/help/159" with out any result.
I've even upgraded to Pro thinking I hit the size-limit.
We're currently in the process of investigating connectivity issues with users in Oman. In the meantime, you should be able to downgrade to 3.10.11: https://www.dropboxforum.com/hc/en-us/community/posts/204347726-Stable-Build-3-10-11
I've gone ahead and temporary disabled updates for for your accounts.
Ah! Thank goodness I am not alone on this one. I was going crazy. I use Dropbox to distribute important files to my clients and VIPs.
Maybe Omantel and Ooredoo just blocked Dropbox? Noticed this issue after upgrading to OS X El Capitan 10.11.2 on both iMac and MacBook Pro on both Omantel and Ooredoo networks.
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