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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>I have two nodes, behind a common router, that are quite similar, except that - on the internet side one appears as port 4569 - and the other as port 4568. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>For the longest time, I have found that I can connect only in one direction. In the other direction I get the “chan_iax2.c:4071 __auto_congest: Auto-congesting call due to slow response” failure message.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>As it happens, the one I can do the connecting connect with is the one that uses the 4569 port.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I would expect that I can connect in either direction. What can cause this one-way problem?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Ken<o:p></o:p></p></div></body></html>