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I'm experiencing a lot of Secure Connection Failures using TBB in China recently. The browser has problem loading all plain network webpages, here's the message displayed in the browser window:

enter image description here

I tried to refresh the page, use new identity, use various of bridge mode(obfs4, meek,etc), even chaining my TBB after a working VPN(psiphon\Free browser, etc), non of these measures work. The problem is so bad that no pages can be loaded. What should I do now?

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  • Same problems here, but with a direct connection. (Last 2 days) I tried to reinstall TOR 7.5, installed 8.0a and same error. When I tried to use a TOR as socks5, other browsers do not work with SSL connections on different ports also. HTTP (80/8080 ports) are working. When I installed TOR browser on a fresh win7 virtual machine - its working... P.S. I didnt install anything on my PC before. Yesterday night it worked, today morning it doesnt... What should I check? Ports are opened, hosts file is clean... Thanks
    – Igor
    Feb 21, 2018 at 8:37
  • Thanks for the iuput, I have no experience with the whole virtual machine stuff, but what you are describing looks like a massive SSL\certificate hiccup. I'm rolling back to previous working version of TBB to see if that change anything. I'll post results when I'm done.
    – Annon35
    Feb 21, 2018 at 10:32
  • Negative, it seems that the previous version 7.0.5 is beginning to show the same problem... might be a GFW attack or a massive software bug. By the way, Igor, can you share your experience on using this TBB on virtual machine? I want to try to narrow down the problem, thanks!
    – Annon35
    Feb 21, 2018 at 15:59
  • Do your Tor logs show any kind of issues? Also have you checked that the time, date and timezone on the computer is correct?
    – cacahuatl
    Feb 22, 2018 at 15:33
  • The log appears fine during the bootstrap process. The OS automatically synchronize time upon start-up, so I don't think it is an issue. By the way, I kept older version of TBB, they're showing the same symptom at this moment.
    – Annon35
    Feb 23, 2018 at 1:39

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