Not able to establish Jabber Notification

[KlausiMaus]

Support Request Template
What version of phpBB are you using? phpBB 3.1.6
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Is registration required to reproduce this issue? Yes
Do you have any MODs installed? No
Do you have any extensions installed? Yes
What version of phpBB3 did you update from? phpBB 3.1.5
What extensions do you have installed? http://forum.kuhnert.ch/app.php/extlist
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Please describe your problem. My provider installed a new Firewall and after enabling pots 5222 and 5223 I have the situation that I cannot setup the jabber-connection in the ACP. I get an empty page and after resync I'm back to ACP jabber page.
Since it was working in the past, I assume,e that the old setup is active, but when I try to send an message I get this:
phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_jabber.php on line 568: stream_socket_enable_crypto(): SSL operation failed with code 1. OpenSSL Error messages: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
Generated by SRT Generator

[KlausiMaus]

Now I see this error-log:

Jabber-Fehler
» JABBER
/memberlist.php

Die Anmeldung am Jabber-Server war nicht erfolgreich.
SEND: <?xml version='1.0' encoding='UTF-8' ?>

SEND: <stream:stream to='jabber.ccc.de' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>

RECV: <?xml version='1.0'?><stream:stream xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' id='3962953441' from='jabber.ccc.de' version='1.0' xml:lang='en'>

RECV: <stream:features><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' node='http://www.process-one.net/en/ejabberd/' ver='bYQ/IFfK87W+0ywEpUSFD2VIpW0='/><starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'><required/></starttls></stream:features>

Switching to TLS.

SEND: <starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>

RECV: <proceed xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>

Error: TLS mode change failed.

[Mick]

If it was working before your provider added the firewall you need to speak to them.

[KlausiMaus]

I've already talked to him and he has opened the ports 5222 and 5223, as I said before.

[KlausiMaus]

In Addition, the ports are only outbound, should they be bidirectional?

[RevRaz]

I've seen 3 or 4 posts now about 3.1.6 doing this, when the previous versions didn't.

[KlausiMaus]

I've seen 3 or 4 posts now about 3.1.6 doing this, when the previous versions didn't.

Do you mean in 3 or 4 posts is reported that with 3.1.6 jabber is running?
I still have this Problem, I've disabled all Extension, but still the same.

Maybe it's helpful to get some info from admind who have jabber working, such like the jabber server they use. I use "jabber.ccc.de", with other Servers (accounts) I get no connection and othet behavier and messages.