bzr was working; now can't co -- error: "ConnectionReset reading response for 'BzrDir.open_2.1', retrying" ?

[h15234 at mailas.com]

Hi

We've used bzr for ages to co from launchpad.  As of a couple of days, we can't connect anymore.

Here's what we've got installed

	bzr --version
		Bazaar (bzr) 2.6.0
		  Python interpreter: /usr/bin/python 2.7.8
		  Python standard library: /usr/lib64/python2.7
		  Platform: Linux-3.18.6-1.gec2a744-desktop-x86_64-with-SuSE-13.2-x86_64
		  bzrlib: /usr/local/lib64/python2.7/site-packages/bzrlib
		  Bazaar configuration: /root/.bazaar
		  Bazaar log file: /root/.bzr.log

		Copyright 2005-2012 Canonical Ltd.
		http://bazaar.canonical.com/

		bzr comes with ABSOLUTELY NO WARRANTY.  bzr is free software, and
		you may use, modify and redistribute it under the terms of the GNU
		General Public License version 2 or later.

		Bazaar is part of the GNU Project to produce a free operating system.

	cat /root/.bazaar/authentication.conf
		[Launchpad]
		host = .launchpad.net
		scheme = ssh
		user = MYUSER

	cat /root/.bazaar/bazaar.conf
		[DEFAULT]
		launchpad_username = MYUSER
		email = MYUSER <MYEMAIL at MYDOMAIN.com>

	bzr whoami
		MYUSER <MYEMAIL at MYDOMAIN.com>

	bzr lp-login
		MYUSER

		tail -f /root/.bzr.log
			Sat 2015-02-14 07:34:01 -0800
			0.051  bazaar version: 2.6.0
			0.051  bzr arguments: [u'lp-login']
			0.055  looking for plugins in /root/.bazaar/plugins
			0.055  looking for plugins in /usr/local/lib64/python2.7/site-packages/bzrlib/plugins
			0.064  looking for plugins in /usr/lib/python2.7/site-packages/bzrlib/plugins
			0.066  encoding stdout as sys.stdout encoding 'UTF-8'
			1.027  Transferred: 1kB (4.1kB/s r:1kB w:0kB)
			1.027  return code 0

But when I try to connect I get

	bzr info -vvv lp:dulwich
		Connection to 91.189.95.84 timed out while waiting to read
		ConnectionReset reading response for 'BzrDir.open_2.1', retrying

		tail -f /root/.bzr.log
			Sat 2015-02-14 07:35:22 -0800
			0.050  bazaar version: 2.6.0
			0.050  bzr arguments: [u'info', u'-vvv', u'lp:dulwich']
			0.054  looking for plugins in /root/.bazaar/plugins
			0.054  looking for plugins in /usr/local/lib64/python2.7/site-packages/bzrlib/plugins
			0.064  looking for plugins in /usr/lib/python2.7/site-packages/bzrlib/plugins
			0.065  encoding stdout as sys.stdout encoding 'UTF-8'
			0.134  ssh implementation is OpenSSH
			[10274] 2015-02-14 07:36:54.173 WARNING: ConnectionReset reading response for 'BzrDir.open_2.1', retrying
			91.684  Traceback (most recent call last):
			  File "/usr/local/lib64/python2.7/site-packages/bzrlib/smart/client.py", line 192, in _call
			    expect_body=self.expect_response_body)
			  File "/usr/local/lib64/python2.7/site-packages/bzrlib/smart/message.py", line 301, in read_response_tuple
			    self._wait_for_response_args()
			  File "/usr/local/lib64/python2.7/site-packages/bzrlib/smart/message.py", line 266, in _wait_for_response_args
			    self._read_more()
			  File "/usr/local/lib64/python2.7/site-packages/bzrlib/smart/message.py", line 288, in _read_more
			    "Unexpected end of message. "
			ConnectionReset: Connection closed: Unexpected end of message. Please check connectivity and permissions, and report a bug if problems persist. 

This used to work just fine.  Not sure what to check for here.

Is there a know problem with launchpad, or suggestions for troubleshooting this?