psi-plus does not connecto to google talk

Psi+ prefer IPv6 instead of IPv4. There are few possible solutions:
1) Disable IPv6 completely in your system.
2) Setup IPv6 to work in your system. (Usually installing miredo is the fastest and the simplest way)
3) Set direct IPv4 address in connection settings of you XMPP account in Psi+. (Use `host google.com` to find list of Google addresses)

Setting the IPv4 address directly does not help.
Any why would PSI plus exhibit this behavior on 12.10 while it works just fine on my 12.4 box on the same net when it needs v6?

Disabling v6 does not change the behavior at all.
As already mentioned above, it does have a v4 connection to the google server as seen in tcpdump.

Ok, could you attach screenshots with your settings?

Many people use google XMPP server in Psi+ without such problem. Psi+ has known issue with IPv6 after Google added IPv6 address in their DNS, but solutions from above list should help...

Hmm, I've just found in logs:
http://<email address hidden>/2012/01/31.html#07:45:55.100299

Could you try 173.194.70.125 or 74.125.135.125?

Same result ;-(

Ok, I heard that libqca2 (cryptographic library) was recently broken in Ubuntu. Could you try plain (not encrypted) connection?

Also you can try last version of Psi+ from official PPA to check if this bug is still reproducible in your system.
See: https://launchpad.net/~psi-plus/+archive/ppa

It seems impossible to use a plaintext connection with google talk ;-( See screenshot)

Using the version from the PPA does not give any different results.

What I do see in the terminal when trying to run any of the two versions is some signature error which seems to confirm a crypto problem:

[14:07:00] Unknown signature value: 795
[14:07:00] Unknown signature value: 668
[14:07:17] Unknown signature value: 668
[14:07:17] Unknown signature value: 668
[14:07:17] Unknown signature value: 669
[14:07:17] Unknown signature value: 795
[14:07:17] Unknown signature value: 795
[14:07:17] Unknown signature value: 795
[14:07:17] Unknown signature value: 668
[14:07:17] Unknown signature value: 668
[14:07:17] Unknown signature value: 668

Have you tried to connect on port 5223? (SSL encryption is used there)

Same result with 5223. Same sig errors inthe terminal.

I saw new thread (in Russian) about problems with connect to gtalk:
http://<email address hidden>/2012/09/29.html#12:52:34.259078

In short: user uses two step authentication in google and this causes the problem.
This can be fixed here: https://accounts.google.com/b/0/IssuedAuthSubTokens

Status changed to 'Confirmed' because the bug affects multiple users.

i don't use two step authentication in google, but can't connect to google talk

@Tehnick:
I already stated above it works fine on 12.4. So the two factor thing is irrelevant.

Ok. Could you downgrade the version of libqca2 library in your system and test the connection again?

For example, fast way:
wget -c https://launchpad.net/ubuntu/+archive/primary/+files/libqca2_2.0.3-2_amd64.deb
sudo dpkg -i libqca2_2.0.3-2_amd64.deb
Restart Psi+.

Sorry, can't test anything the next two weeks, travelling with my 12.4 box.

Update packages with ssl libraries:
  libssl1.0.0:i386 1.0.1c-3ubuntu1 -> 1.0.1c-3ubuntu2
  openssl:i386 1.0.1c-3ubuntu1 -> 1.0.1c-3ubuntu2

It should solve your problem.

Of course it will be libssl1.0.0:amd64 and openssl:amd64 in your case.

You probably need to downgrade libqca2-plugin-ossl instead of or in addition to libqca2. I have a 12.4 system with a rebuilt/updated libqca2-plugin-ossl and I had this problem (with psi+ but not psi). Installing miredo worked around it.

This bug was fixed in the package psi-plus - 1.2.105-1

---------------
psi-plus (1.2.105-1) unstable; urgency=medium

  * New upstream release.
  * Bump Standards-Version to 4.1.1 (was 4.1.0): no changes required.

 -- Boris Pek <email address hidden> Thu, 26 Oct 2017 00:41:55 +0300