SSH Protocol Error: invalid key exchange value

Hi All,

Does anyone experience getting an error: "SSH Protocol Error: invalid key exchange value." with Serv-U 15.1.2? I was'nt able to connect thru SFTP after the upgrade but not with other protocol.

I already apply the hotfix: http://downloads.solarwinds.com/solarwinds/Release/HotFix/SU-v15.1.2-HotFix1_v2.zip

I have created a listener on the internal interface and tried to connect to it.  I get an error that the server unexpectedly closed the network connection.  The firewall does not appear to be the issue.

Here are the sample logs from Serv-U:

[03] Wed 28Oct15 04:40:28 - (000344) IP-Name: 38.ip-158-69-198.net (158.69.198.38)

[31] Wed 28Oct15 04:40:28 - (000344) SSH Protocol Error: invalid key exchange value.

[02] Wed 28Oct15 04:40:28 - (000344) Closed session

[02] Wed 28Oct15 04:45:45 - (000345) Connected to 60.182.213.43 (local address 24.149.10.248, port 22)

[03] Wed 28Oct15 04:45:45 - (000345) IP-Name: 43.213.182.60.broad.jh.zj.dynamic.163data.com.cn (60.182.213.43)

[31] Wed 28Oct15 04:45:46 - (000345) SSH Protocol Error: invalid key exchange value.

[02] Wed 28Oct15 04:45:46 - (000345) Closed session