Looking through the libssh git logs, it appears that libssh 0.6 was the first version to add support for a non-sha1 key exchange method, ecdh_sha2_nistp256 [1]. 0.6 also added support for [email protected] [1]. org.apache.geode.internal.cache.wan.GatewaySenderException: org.apache.geode.security.AuthenticationFailedException: HandShake failed in Diffie-Hellman key exchange ...
1f242a3f e454a525 Mon Mar 21 11:12:48 2016 XX.XX.XX.XX:57804 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity) Mon Mar 21 11:12:48 2016 XX.XX.XX.XX:57804 TLS Error: TLS handshake failed Mon Mar 21 11:12:48 2016.Mikrotik 3.x have a bug with WPA and WPA2. In wpa, wpa2, tkip or aes... all configuration log: "unicast key exchange timeout" or "GROUP KEY EXCHANGE TIME OUT" or something else.
Get a free 45-day trial of Tectia SSH Client/Server. Download your free Tectia trial > Company. About us; ... The key exchange failed. Default log facility: normal ...