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<p dir="auto">I get regular connection errors with GnuTLS and XMPP servers. Please note this is <em>not</em> the problem of xmpp client vs. server (there's another bug for this), but a separate problem.</p>
<p dir="auto">The bug happens irregularly, sometimes I get a failure and the next try it works on the same host, so there seems to be some nondeterminism involved, sometimes connections succeed.</p>
<p dir="auto">Failure example:
$ gnutls-cli --starttls-proto=xmpp jabber.ccc.de:5222
Processed 132 CA certificate(s).
Resolving 'jabber.ccc.de:5222'...
Connecting to '146.255.57.229:5222'...
error receiving <proceed: Network is unreachable</p>
<p dir="auto">$ gnutls-cli --starttls-proto=xmpp conversations.im:5222
Processed 132 CA certificate(s).
Resolving 'conversations.im:5222'...
Connecting to '78.47.177.120:5222'...
error receiving <proceed: Success</p>
<p dir="auto">$ gnutls-cli --starttls-proto=xmpp schokokeks.org:5222
Processed 132 CA certificate(s).
Resolving 'schokokeks.org:5222'...
Connecting to '178.63.68.96:5222'...
error receiving <proceed: Network is unreachable</p>
<p dir="auto">There was a previous thread on the mailing list about what sounds like a similar problem:
<a href="https://lists.gnupg.org/pipermail/gnutls-devel/2017-July/008470.html" rel="nofollow noreferrer noopener" target="_blank">https://lists.gnupg.org/pipermail/gnutls-devel/2017-July/008470.html</a></p>
<p dir="auto">But the problem persists in the latest version of gnutls (3.6.6).</p>
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