After I start up my computer, I make sure the internet is connected.

Then I try to start torbrowser, last upgrade was to version 6.0.4.

I have problems getting it to start now. I keep getting a pop up error that says:

Tor Launcher: Tor failed to establish a Tor network connection. Connecting to the Tor network failed (no route to host - ###.###.#.###:####)."

I get this every time i start up my computer and I always have to close it down and Exit. I will try again sometimes 2-4 times to start it before I get a connection, and sometimes it won't connect at all so I'm forced to use a different browser.

I did not not have this problem in previous versions, so for now I have gone back to version 5.0.2 and it works fine, I never get that error.

Please tell me if this will be fixed in a near future upgrade.

Thank you very much.

  • PS. Sometimes the error will say "could not connect to Tor control port".
    – user14360
    Sep 17, 2016 at 3:21
  • Do you have anti-virus software or other "security" software installed?
    – Jens Kubieziel
    Sep 17, 2016 at 7:42
  • I did have antivirus but it recently expired, so it's not functional at the moment. (yea, bad, i know)
    – user14360
    Sep 17, 2016 at 13:13
  • I tried updating to 6.0.5 but still have the same problem. It seems I get the error " "could not connect to Tor control port" most of the time, the previously stated error only showing from time to time. I have to downgrade back to 5.0.2 again, but the problem with that is some web pages won't load, showing I need to update my browser in order to see them. So I am stuck. Please help. And please let me know if this will be fixed in the next update. Thank you very much.
    – user14360
    Sep 17, 2016 at 21:18
  • I have the same problem, just did the upgrade for Tor browser and no I am unable to connect at all. Without resetting my whole computer how do I go back to my previous version?
    – user14373
    Sep 18, 2016 at 4:13

1 Answer 1


You have a censorship in your case, so let's find it! Please post these data:

  • Traceroute and ping(yes/no) to the IP's in your log
  • Your torrc config
  • Your ipconfig /all - scrubble your external IP if you have it directly on your PC!
  • Traceroute and ping(yes/no) to your bridges - scrubbling the IP's!!!

It's safe, because Tor directories IP's are hardcoded to the source and publically available, so no leaks possible. Add the data - and I'll be able to help you more specificly. If you don't want to publish it here - drop a line and we can have a private Skype chat about it

  • I don't believe it is a censorship issue based on two things. First, it has happened on 3 different networks that I connect through. Second, the problem goes away when I downgrade back to 5.0.2. The only problem with using 5.0.2 though is that I can't view all the webpages and will sometimes get a message saying "you must update your browser to be able to view this page". The other thing I noticed is that although I still have the problem with 6.0.5, it is much worse with 6.0.4.
    – user14360
    Sep 20, 2016 at 15:11
  • As for skyping the information you asked about, the downloaded version blocks all tor connections and the web version will not work while I am having this problem, so I can not use skype right now.
    – user14360
    Sep 20, 2016 at 15:11
  • @user14360 it seems to be exactly the site-wide censorship, very looking-like-that, beleive my experience. Have you tried a standalone Tor instance with -f /path/to/your/config/file ? Do you need help with the config?
    – Alexey Vesnin
    Sep 20, 2016 at 21:10

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