en	[[!meta title="Troubleshooting connecting to Tor"]]

en	The sections below summarize the most common problems when [[connecting to Tor|tor]].

en	The computer clock is set to an incorrect time zone

en	The clock of the computer needs to be correct to connect to Tor.

en	If you choose to [[hide that you are connecting to Tor|tor#hiding]], you might have to fix the clock manually if Tails fails to connect to Tor.

en	Choose **Fix Clock** in the error screen of the *Tor Connection* assistant to set the clock and time zone of your computer.

en	If you have problems fixing the clock, you can instead try to restart Tails and choose to [[connect to Tor automatically|tor#automatic]]. When connecting to Tor automatically, Tails fixes the clock automatically by connecting to the captive portal detection service of [Fedora](https://getfedora.org/) before connecting to Tor.

en	You need to sign in to the network

en	[[!inline pages="doc/anonymous_internet/unsafe_browser/captive_portal.inline" raw="yes" sort="age"]]

en	To sign in to a network using a captive portal:

en	In the error screen of the *Tor Connection* assistant, choose **Try Signing in to the Network**.

en	Wait until the *Unsafe Browser* starts.

en	Follow the instructions on the homepage of the *Unsafe Browser*.

en	The progress bar gets stuck around 50%

en	When using a custom Tor *obfs4* bridge, the progress bar of *Tor Connection* sometimes gets stuck halfway through and becomes extremely slow.

en	[[!img stuck.png link="no" alt=""]]

en	To fix this, you can either:

en	Close and reopen *Tor Connection* to speed up the initial connection.

en	Try with [[another bridge|troubleshoot#bridge]].

en	<div class="bug">

en	<!--

en	On 2025-09-04, the Anticensorship Team believed that there were still many bridges with an obfs4 version earlier than 0.0.12.

en	Their "transport-info" info in cached-extrainfo is too new to give us reliable information.

en	-->

en	This issue only affects outdated obfs4 bridges and does not happen with obfs4 bridges that run version 0.0.12 or later.

en	</div>

en	The bridge is no longer operational

en	It is possible that the bridge that you entered is no longer working.

en	Learning about another bridge

en	[[!inline pages="doc/anonymous_internet/tor/bridge.inline" raw="yes" sort="age"]]

en	You did not enter the bridge correctly

en	You can use *obfs4* and *WebTunnel* bridges in Tails right now.

en	An *obfs4* bridge looks like:

en	obfs4 1.2.3.4:1234 B0E566C9031657EA7ED3FC9D248E8AC4F37635A4 cert=OYWq67L7MDApdJCctUAF7rX8LHvMxvIBPHOoAp0+YXzlQdsxhw6EapaMNwbbGICkpY8CPQ iat-mode=0

en	A *WebTunnel* bridge looks like:

en	webtunnel [1234:567:890a:bcde:f123:4567:890a:bcde]:443 5F55B60FF2AEA996B5109BC338FC5F2BCA696F52 url=https://example.com/webtunnel ver=0.0.1

en	You need to enter the entire line, not just the IP address and port combination.