>> On Fri, 14 Sep 2012 17:09:46 +0200 (CEST), >> "M. Fioretti" <mfioretti at nexaima.net> said: M> Yesterday I completed (fingers crossed) the switch to a different ADSL M> provider. From the moment I turned on the modem on the new ADSL line, I M> became unable to ssh into server A. All attempts abort with this M> message: M> ssh_exchange_identification: Connection closed by remote host This is in the "grasping at straws" category, but have you tried connecting with a different cipher, like "blowfish" or "3des-cbc"? If/as/when you get access to the server, can you disable TCP checksum offloading? root# ethtool -K eth0 tx off rx off root# ethtool -t eth0 offline # adapter self-test -- Karl Vogel I don't speak for the USAF or my company A sum of accountants --collective nouns, June 1999 LINGUIST