**Question:**

Customer updated Server and now unable to connect to server. Here is the error log:

ChilkatLog: Connect: DllDate: Sep 3 2009 UnlockPrefix: JAKEAASSH Username: jakea Component: ActiveX SftpVersion: 0 hostname: sag-feed.mostwantedweb.net port: 22 Established TCP/IP connection with SSH server clientIdentifier: SSH-2.0-ChilkatSSH_2.0.0 FromServer: SSH-2.0-OpenSSH_7.1

```
KeyExchangeAlgs:
algorithm: curve25519-sha256@libssh.org
algorithm: ecdh-sha2-nistp256
algorithm: ecdh-sha2-nistp384
algorithm: ecdh-sha2-nistp521
algorithm: diffie-hellman-group-exchange-sha256
algorithm: diffie-hellman-group14-sha1
HostKeyAlgs:
algorithm: ssh-rsa
algorithm: ecdsa-sha2-nistp256
algorithm: ssh-ed25519
EncCS:
algorithm: chacha20-poly1305@openssh.com
algorithm: aes128-ctr
algorithm: aes192-ctr
algorithm: aes256-ctr
algorithm: aes128-gcm@openssh.com
algorithm: aes256-gcm@openssh.com
EncSC:
algorithm: chacha20-poly1305@openssh.com
algorithm: aes128-ctr
algorithm: aes192-ctr
algorithm: aes256-ctr
algorithm: aes128-gcm@openssh.com
algorithm: aes256-gcm@openssh.com
MacCS:
algorithm: umac-64-etm@openssh.com
algorithm: umac-128-etm@openssh.com
algorithm: hmac-sha2-256-etm@openssh.com
algorithm: hmac-sha2-512-etm@openssh.com
algorithm: hmac-sha1-etm@openssh.com
algorithm: umac-64@openssh.com
algorithm: umac-128@openssh.com
algorithm: hmac-sha2-256
algorithm: hmac-sha2-512
algorithm: hmac-sha1
MacSC:
algorithm: umac-64-etm@openssh.com
algorithm: umac-128-etm@openssh.com
algorithm: hmac-sha2-256-etm@openssh.com
algorithm: hmac-sha2-512-etm@openssh.com
algorithm: hmac-sha1-etm@openssh.com
algorithm: umac-64@openssh.com
algorithm: umac-128@openssh.com
algorithm: hmac-sha2-256
algorithm: hmac-sha2-512
algorithm: hmac-sha1
CompCS:
algorithm: none
algorithm: zlib@openssh.com
CompSC:
algorithm: none
algorithm: zlib@openssh.com
Unable to agree upon server-to-client encryption algorithm.
Unable to agree upon client-to-server encryption algorithm.
MAC: HMAC-SHA1
MAC: HMAC-SHA1
Compression: none
Compression: none
Key Exchange: DH Group Exchange SHA256
Host Key Algorithm: RSA
numBits: 128
pbits: 1024
Using GEX Group.
Sending KEX_DH_GEX_REQUEST...
numBytesRequested: 8
Connection closed by server.
Failed to read data on SSH connection.
Failed to read KEX_DH_GEX_REQUEST response
Failed.
```

Any suggestions on how to resolve this issue will be very appreciated!

[b]ChilkatLog: Connect: DllDate: Sep 3 2009[/b]

Upgrade to the latest chilkat release, this one is more than 6 years old.

Thanks Gert. I emailed support to see about how to go about upgrading our Chilkat components. We have not updated them since we purchased them.

I just hope that resolves the problem!!!

Thank you.

My understanding is just download new version and use your old key.. Product license is perpetual, support contract has end date.

The product license is perpetual, and grandfathered license holders can update to new versions perpetually because that was the deal at the time. However, a year or two ago (I can't remember exactly when), the licensing change so that only 1 year of new version upgrades is included.

Given the date in the LastErrorText ("DllDate: Sep 3 2009") the 1YR support has surely expired..